NCERT Exemplar Class 12 Physics Solutions Chapter 3 Current Electricity

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NCERT Exemplar Class 12 Physics Solutions Chapter 3 Current Electricity

Q: Is this chapter important from exam POV?

Yes, current electricity is one of the most crucial chapters that one needs to focus on for getting good marks in boards and entrance exams.

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Our teachers have solved all questions from NCERT exemplar Class 12 Physics chapter 3 current electricity with complete steps and details.

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Edited By Safeer PP | Updated on Sep 14, 2022 12:28 PM IST | #CBSE Class 12th

NCERT Exemplar Class 12 Physics solutions chapter 3 is from the point of view of exams. It also gives students an insight on how current flows in working of different types of devices in real life such as conductors. The previous chapters dealt with charges that were considered as at rest, whereas this chapter introduces various concepts relating to steady currents. NCERT Exemplar Class 12 Physics chapter 3 solutions includes the idea of electric energy and power, electric resistivity, and conductivity, along with a detailed explanation of carbon resistors and their colour codes. The concepts discussed in the NCERT Exemplar Class 12 Physics solutions chapter 3 are important from the point of view of board exams as the JEE Main exam. The students can also make use of NCERT Exemplar Class 12 Physics solutions chapter 3 PDF download, for further learning.

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This Story also Contains

NCERT Exemplar Class 12 Physics Solutions Chapter 3 MCQI
NCERT Exemplar Class 12 Physics Solutions Chapter 3 MCQII
NCERT Exemplar Class 12 Physics Solutions Chapter 3 Very Short Answer
NCERT Exemplar Class 12 Physics Solutions Chapter 3 Short Answer
NCERT Exemplar Class 12 Physics Solutions Chapter 3 Long Answer
NCERT Exemplar Class 12 Physics Solutions Chapter 3 Current Electricity Main Subtopics Covered
NCERT Exemplar Class 12 Physics Chapter Wise Links
Important Topics To Cover For Exams From NCERT Exemplar Class 12 Physics Solutions Chapter 3 Current Electricity

Also see - NCERT Solutions for Class 12 Physics

NCERT Exemplar Class 12 Physics Solutions Chapter 3 MCQI

Question:1

Consider a current carrying wire (current I) in the shape of a circle. Note that as the current progresses along the wire, the direction of j (current density) changes in an exact manner, while the current I remain unaffected. The agent that is essentially responsible for is
A. source of emf.
B. electric field produced by charges accumulated on the surface of wire.
C. the charges just behind a given segment of wire which push them just the right way by repulsion.
D. the charges ahead.

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Answer:

b)
Current density (J) is the current per unit area and is given by $\overrightarrow{J}=\sigma\overrightarrow{ E}$ , where conductivity $\left (\sigma =\frac{l}{AR} \right )$ and electric field $\left ( \overrightarrow{E} \right )$ .

Question:2

Two batteries of emf $\varepsilon _{1}$ and $\varepsilon _{2}\left ( \varepsilon_ {2}>\varepsilon _{1} \right )$ and internal resistances r₁ and r₂respectively are connected in parallel as shown in Figure.

capture-32
A. The equivalent emf $\varepsilon _{eq}$ of the two cells is between $\varepsilon _{1}$ and $\varepsilon _{2}$ , i.e. $\varepsilon _{1}<\varepsilon _{eq}<\varepsilon _{2}$
B. The equivalent emf $\varepsilon _{eq}$ is smaller than 1.
C. The $\varepsilon _{eq}$ is given by $\varepsilon _{eq}=1+2$ always.
D. $\varepsilon _{eq}$ is independent of internal resistances r₁ and r₂.

Answer:

The correct answer is the option (a)
Explanation: Equivalent EMF in parallel is given as:
$\varepsilon _{eq}=\frac{\varepsilon _{1}r_{2}+\varepsilon _{2}r_{1}}{r_{1}+r_{2}}$
This value will always lie between $\varepsilon _{1}$ and $\varepsilon _{2}$

Question:3

A resistance R is to be measured using a meter bridge. Student chooses the standard resistance S to be 100. He finds the null point at $l_1 = 2.9 cm$ . He is told to attempt to improve the accuracy. Which of the following is a useful way?

A. He should measure l1 more accurately.
B. He should change S to 1000and repeat the experiment.
C. He should change S to 3 and repeat the experiment.
D. He should give up hope of a more accurate measurement with a meter bridge.

Answer:

The correct answer is the option (c)
Explanation:
$R=S\left (\frac{l_1}{100-l_1} \right )=100\left (\frac{2.9}{97.1} \right )=2.98\Omega$
He should aim to get the balance point near the centre (l1=50 cm)
$2.98\Omega =S\left (\frac{50}{50} \right )$
$S\cong 3\Omega$

Question:4

Two cells of emf’s approximately 5V and 10V are to be accurately compared using a potentiometer of length 400cm.
A. The battery that runs the potentiometer should have a voltage of 8V.
B. The battery of potentiometer can have a voltage of 15V and R adjusted so that the potential drop across the wire slightly exceeds 10V.
C. The first portion of 50 cm of the wire itself should have a potential drop of 10V.
D. Potentiometer is usually used for comparing resistances and not voltages.

Answer:

The correct answer is the option (b)
Explanation: The potential drop along the wires of the potentiometer should be greater than the emfs of cells. The battery of potentiometer must be in excess of 10V.

Question:5

A metal rod of length 10 cm and a rectangular cross-section of $1cm \times \frac{1}{2} cm$ is connected to a battery across opposite faces. The resistance will be
A. maximum when the battery is connected across $1cm \times \frac{1}{2} cm$ faces.
B. maximum when the battery is connected across $10cm \times 1 cm$ faces.
C. maximum when the battery is connected across $10cm \times \frac{1}{2} cm$ faces.
D. same irrespective of the three faces.

Answer:

The correct answer is the option (a)
Explanation: $R=\rho\frac{l}{A}$
Resistance is directly proportional to length and inversely proportional to the cross-sectional area. Resistance will be maximum when l is maximum and A minimum. Both these conditions are met simultaneously when the battery is connected across the $1cm \times \frac{1}{2} cm$ faces.

Question:6

Which of the following characteristics of electrons determines the current in a conductor?
A. Drift velocity alone.
B. Thermal velocity alone.
C. Both drift velocity and thermal velocity.
D. Neither drift nor thermal velocity

Answer:

The correct answer is the option (a)
$I=Anev_d$

NCERT Exemplar Class 12 Physics Solutions Chapter 3 MCQII

Question:7

Kirchhoff ’s junction rule is a reflection of
A. conservation of current density vector.
B. conservation of charge.
C. the fact that the momentum with which a charged particle approaches a junction is unchanged (as a vector) as the charged particle leaves the junction.
D. the fact that there is no accumulation of charges at a junction.

Answer:

The correct answers are the options (b,d)
Explanation: According to the law of conservation of charges, the charge of a system will stay constant. From this, it can be derived that net charge flowing into a junction is equal to the net charge going out of the system.

Question:8

Consider a simple circuit shown in Figure capture-33 variable resistance R’. R’ can vary from $R_0$ to infinity. r is internal resistance of the battery $(r<<R<<R_0).$
capture-34
A. Potential drop across AB is nearly constant as R’ is varied.
B. Current through R is nearly a constant as R’ is varied.
C. Current I depends sensitively on R’.
D. $I\geqslant \frac{V}{r+R}$ always.

Answer:

The correct answers are the options (a,d)
Explanation:
$I=\frac{V}{r+R_{eq}}$
As $r+R<r+R_{eq}$
$I=\frac{V}{r+R_{eq}}\leq \frac{V}{r+R}$

Question:9

Temperature dependence of resistivity $\rho (T)$ of semiconductors, insulators and metals is significantly based on the following factors:
A. number of charge carriers can change with temperature T.
B. time interval between two successive collisions can depend on T.
C. length of material can be a function of T.
D. mass of carriers is a function of T.

Answer:

The correct answers are the options (a,b)
Explanation: Resistivity is a function of relaxation time $(\tau )$ and mass of charge carrier (m). Mass of charge carrier is independent of temperature, whereas length also does not fluctuate significantly over a temperature range.

Question:10

The measurement of an unknown resistance R is to be carried out using Wheat stones bridge (see Figure of NCERT Book). Two students perform an experiment in two ways. The first students take $R_2 = 10\Omega$ and $R_1 = 5\Omega$ . The other student takes $R_2 = 1000\Omega$ and $R_1 = 500\Omega$ . In the standard arm, both take $R_3= 5\Omega$ . Both find $R=\frac{R_{2}}{R_{1}}R_{3}=10\Omega$ within errors.

A. The errors of measurement of the two students are the same.
B. Errors of measurement do depend on the accuracy with which $R_{2}$ and $R_{1}$ can be measured.
C. If the student uses large values of $R_{2}$ and $R_{1}$ , the currents through the arms will be feeble. This will make determination of null point accurately more difficult.
D. Wheatstone bridge is a very accurate instrument and has no errors of measurement.

Answer:

The correct answers are the options (b,c)
Explanation: Using large values of $R_{1}$ and $R_{2}$ , will reduce the current flowing through the system, making it difficult to get accurate readings from the galvanometer.

Question:11

In a meter bridge the point D is a neutral point (Figure).

capture-35
A. The meter bridge can have no other neutral point for this set of resistances.
B. When the jockey contacts a point on meter wire left of D, current flows to B from the wire.
C. When the jockey contacts a point on the meter wire to the right of D, current flows from B to the wire through galvanometer.
D. When R is increased, the neutral point shifts to left.

Answer:

The correct answers are the options (a,c)
Explanation: No current will flow through the Galvanometer when the jockey is placed at D. Potential Difference between B and D is zero. If the jockey is placed to the right of D, Potential at B becomes greater than the potential at D, the current flows from B to D.

NCERT Exemplar Class 12 Physics Solutions Chapter 3 Very Short Answer

Question:12

Is the momentum conserved when charge crosses a junction in an electric circuit? Why or why not?

Answer:

As drift velocity is proportional to the electric field, when charge crosses a junction the momentum is not conserved.

Question:13

The relaxation time $\tau$ is nearly independent of applied E field whereas it changes significantly with temperature T. First fact is (in part) responsible for Ohm’s law whereas the second fact leads to variation of ρ with temperature. Elaborate why?

Answer:

Relaxation time decreases with increase in drift velocity. This increases the resistivity
$\rho=\frac{m}{ne^2\tau }$

Question:14

What are the advantages of the null-point method in a Wheatstone bridge? What additional measurements would be required to calculate $R_{unknown}$ by any other method?

Answer:

As no electricity will pass through the galvanometer of the Wheatstone bridge at the null point. It can be used to calculate the resistance of an unknown resistor.

Question:15

What is the advantage of using thick metallic strips to join wires in a potentiometer?

Answer:

Thick metallic strips have large cross section and thus offer less resistance

Question:16

For wiring in the home, one uses Cu wires or Al wires. What considerations are involved in this?

Answer:

The following considerations are made to decide on the wiring:

Conductivity of metal
Cost
Availability

Question:17

Why are alloys used for making standard resistance coils?

Answer:

Because of their low temperature sensitivity and low temperature coefficient of resistance, alloys are used to make standard resistance coils. Also, they have a lower conductivity or higher resistivity, this reduces the length required to make coils.

Question:18

Power P is to be delivered to a device via transmission cables having resistance $R_C$ . If V is the voltage across R and I the current through it, find the power wasted and how can it be reduced.

Answer:

P (Power transmitted)=VI
H (Heat Loss)= $I^{2}R$
High current flowing through the devices will lead to higher Energy Loss (as heat), so power should be transmitted at a high voltage and low current.

Question:19

AB is a potentiometer wire (Figure). If the value of R is increased, in which direction will the balance point J shift?
capture-36

Answer:

On increasing the applied resistance, the potential difference across AB will decrease. To balance the potential across the other battery, the length AJ' should increase. Balance point shift towards B.

Question:20

While doing an experiment with potentiometer (Figure ) it was found that the deflection is one sided and (i) the deflection decreased while moving from one end A of the wire to the end B; (ii) the deflection increased. While the jockey was moved towards the end B.

capture-37
(i) Which terminal +or –ve of the cell $E_{1}$ , is connected at X in case (i) and how is $E_{1}$ related to $E$ ?
(ii) Which terminal of the cell $E_{1}$ is connected at X in case (ii)?

Answer:

i) As jockey moves closer to B, the galvanometer potential difference decreases. This requires the positive terminal of $E_{1}$ to be at X.
ii) Exactly opposite to (i), at X $E_{1}^{'}$ s negative terminal is connected.

Question:21

A cell of emf E and internal resistance r is connected across an external resistance R. Plot a graph showing the variation of P.D. across R, verses R.

Answer:

$I=\frac{E}{R+r} and V=IR$
$V=\frac{ER}{R+r}=\frac{E}{1+\frac{r}{}R}$
An increase in R leads to an increase in V, till the point it approaches E
Following is the graphical representation:
capture-38

NCERT Exemplar Class 12 Physics Solutions Chapter 3 Short Answer

Question:22

First a set of n equal resistors of R each are connected in series to a battery of emf E and internal resistance R. A current I is observed to flow. Then the n resistors are connected in parallel to the same battery. It is observed that the current is increased 10 times. What is ‘n’?

Answer:

$R_{Series}=nR$
$I_{Series}=\frac{E}{R+nR}=\frac{E}{(n+1)R}$
$R_{Parallel}=\frac{R}{}n$
$I_{Parallel}=\frac{E}{R+\frac{R}{}n}=\frac{E}{}R\times \frac{n}{n+1}$
$I_{Parallel}=10\times I_{Series}$
$\frac{E}{}R\times \frac{n}{n+1}=10\times \frac{E}{}R\times \frac{1}{n+1}$
$n=10$

Question:23

Let there be n resistors $R_1 ............R_n$ with $R_{max} = max (R_1......... R_n)$ and $R_{min} = min (R_1 ..... R_n)$ . Show that when they are connected in parallel, the resultant resistance R_P< Rmin and when they are connected in series, the resultant resistance $R_S > R_{max}$ . Interpret the result physically.

Answer:

$\frac{1}{R_{parallel}}=\frac{1}{R_1}+\frac{1}{R_{2}}+.....+\frac{1}{R_n}$
$\frac{R_{min}}{R_{parallel}}=\frac{R_{min}}{R_1}+\frac{R_{min}}{R_2}....+\frac{R_{min}}{R_n}$
$\frac{R_{min}}{R_{parallel}}> 1$
$R_{series}= R_1+R_2...+R_n$
$R_{series}>R_{max}$
This can be represented physically as shown below:

Question:24

The circuit in Figure shows two cells connected in opposition to each other. Cell $E_{1}$ is of emf 6V and internal resistance 2 $\Omega$ ; the cell $E_{2}$ is of emf 4V and internal resistance 8 $\Omega$ . Find the potential difference between the points A and B.

capture-42

Answer:

Equivalent EMF of the Cells $=6V-4V=2V$
$R_{eq}=2\Omega +8\Omega=10\Omega$
$I=\frac{2V}{10 \Omega}=0.2A$
$V_B-V_A=4+8\times 0.2=5.6V$

Question:25

Two cells of same emf E but internal resistance $r_{1}$ and $r_{2}$ are connected in series to an external resistor R (Figure). What should be the value of R so that the potential difference across the terminals of the first cell becomes zero.

capture-44

Answer:

$EMF_{ef}=E+E=2E$
$R_{ef}=r_1+r_2$
$I=\frac{2E}{R+r_1+r_2}$
As net potential across the cell is 0,
$E-Ir_1=0$
$E-\frac{2Er_1}{R+r_1+r_2}=0$
$R=r_1-r_2$

Question:26

Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1mm. Conductor B is a hollow tube of outer diameter 2mm and inner diameter 1mm. Find the ratio of resistance to

Answer:

$Resistance(R)=\rho\frac{L}{A}$
$R_A=\rho _A\left (\frac{L_A}{A_A} \right ) and R_B=\rho _B\left (\frac{L_B}{A_B} \right )$
$\rho _A=\rho _B \ and \ L_A=L_B$ $\frac{R_A}{R_B}=\frac{A_B}{A_A}=\frac{\pi r_A^2}{\pi (r_{out}^2-r_{in}^2)}=\frac{1^2-\left (\frac{1}{2} \right )^{2}}{\left ( \frac{1}{2} \right )^{2}}=\frac{\frac{3}{4}}{\frac{1}{4}}=3$

Question:27

Suppose there is a circuit consisting of only resistances and batteries and we have to double (or increase it to n-times) all voltages and all resistances. Show that currents are unaltered. Do this for circuit of Example 3.7 in the NCERT Text Book for Class XII.

Answer:

Original:
$EMF = V_1$
$Resistance = R + R_{eff}$
$Current = \frac{V_1}{R+R_{eff}}$
New:
$EMF = nV_1$
$Resistance =n( R + R_{eff})$
$Current =\frac{n(V_1)}{n(R+R_{eff})}= \frac{V_1}{R+R_{eff}}$
Increasing the EMF and Resistance in the same ratio (say 2), will not change the current flowing through the system.

NCERT Exemplar Class 12 Physics Solutions Chapter 3 Long Answer

Question:28

Two cells of voltage 10V and 2V and internal resistances 10 $\Omega$ and 5 $\Omega$ respectively, are connected in parallel with the positive end of 10V battery connected to negative pole of 2V battery (Figure). Find the effective voltage and effective resistance of the combination.

capture-46

Answer:

capture-47
Kirchoff's Junction Law at $C: I_1=I_2+I_3$
Kirchoff's Loop Law for efbae: $10-I_1\times 10-I -3\times R=0$
$10-10I_2-(R+10)I_3=0$
Kirchoff's Loop Law for cbadc:- $2+5I_2-I_3R=0$
$(10-10I_2-(R+10)I_3)+(-2+5I_2-I_3R)\times 2=0$
$6-I_3R+10-2I_3R=0$
$6=3I_3R+10I_3$
$I_3=\frac{6-3I_3R}{10}$
Veff & Reff will fulfil the following:
$V_{eff}-I_3(R+R_{eff})=0$
$R_{eff}=\frac{1}{\frac{1}{10}+\frac{1}{15}}=\frac{10}{}3$
$V_{eff}-I_3\left (R+\frac{10}{}3 \right )=0$
$V_{eff}=I_3R+I_3\times \frac{10}{}3$
$V_{eff}=I_3R+\frac{6-3I_3R}{10}\times \frac{10}{}3=I_3R+6-\frac{3I_3R}{}3=2V$

Question:29

A room has AC run for 5 hours a day at a voltage of 220V. The wiring of the room consists of Cu of 1 mm radius and a length of 10 m. Power consumption per day is 10 commercial units. What fraction of it goes in the joule heating in wires? What would happen if the wiring is made of aluminium of the same dimensions?

$[\rho_ {Cu} = 1.7 \times -810\Omega m, \rho _{Al} = 2.7 \times 10^{-8} \Omega m]$

Answer:

Energy consumed day=10 kWh
Energy consumed hour=2 kWh
Power=2kW
P=VI
V=220V
$I=\frac{P}{}V=\frac{2000}{220}=\frac{100}{11}$
Heat $=I^2\times R_{Cu}$
$R_{Cu}=\rho\left ( \frac{L}{}A \right )=1.7\times 10^{-8}\times \left (\frac{10}{\pi \times \left (5\times 10^{-4} \right )^{2}} \right )$
$Heat=\left (\frac{100}{110} \right )^{2}\times 1.7\times 10^{-8}\times \left (\frac{10}{\pi \times \left (5\times 10^{-4} \right )^{2}} \right )=4.4 W$
fractional loss in heating
$=\frac{4.4}{2000}\times 100 =0.22\%$
$\frac{Heat_{Al}}{Heat_{Cu}}=\frac{I^2RAl}{I^2R_{Cu}}=\frac{\rho _{Al}}{\rho _{Cu }}$
Heat_Al=7W
fractional loss in heating
$=\frac{7}{2000}\times1000=0.35\%$

Question:30

In an experiment with a potentiometer, $V_{B}=10V$ R is adjusted to be $50 \Omega$ (Figure). A student wanting to measure voltage E₁ of a battery (approx. 8V) finds no null point possible. He then diminishes R to $10 \Omega$ and is able to locate the null point on the last (4^th) segment of the potentiometer. Find the resistance of the potentiometer wire and potential drop per unit length across the wire in the second case.

Answer:

R_eq=50+R
V_eq=10V
$I=\frac{10}{50+R'}$
The potential difference across the potentiometer
$V'=IR'=\frac{10R'}{50+R'}$
V'<8
$10R'<8(50+R' )$
R'<200
$\frac{10R'}{10+R'}>8$
R'>40
At balance point:
$\frac{10\times \frac{3}{}4R'}{10+R'}<8$
R'>-160
As R’ can only be positive, R'>160
$k\times 400cm>8V$
k>2 V/m
As balance, point isn’t at 3m
$K\times 3<8$
$k<2\frac{2}{}3\frac{V}{}m$

Question:31

(a) Consider the circuit in Figure. How much energy is absorbed by electrons from the initial state of no current (ignore thermal motion) to the state of drift velocity?

(b) Electrons give up energy at the rate of $RI_2$ per second to the thermal energy. What time scale would one associate with energy in problem (a)? n = no of electron/volume = $10^{29}/m^3$ , length of circuit = 10 cm, cross-section = A $= (1mm)^2$
capture-49

Answer:

a)
$A=10^{-6}m^2$
$R=6\Omega$
$n=10^{29} m^{-3}$
$e=1.6\times 10^{-19}C$
$I=\frac{V}{}R=1A$
$m_e=9.1\times10^{-31}Kg$
$L=10^{-1}m$
a) $I=Anev_d$
$v_d=\frac{I}{Ane}=6.25\times 10^{-5}m/s$
Kinetic energy=
$\frac{1}{}2\times m_e\times v_d^2=2\times 10^{-17}J$
b) Power loss=
$I^2R=6W$
$P=\frac{E}{}t$
$t=\frac{E}{}P=10^{-17}s$

NCERT Exemplar Class 12 Physics Solutions Chapter 3 Current Electricity Main Subtopics Covered

Introduction
Electric Current
Electric Currents in Conductors
OHM’s Law
Drift of Electrons and the Origin of Resistivity
Limitations of OHM’s Law
Resistivity of Various Materials
Temperature Dependence of Resistivity
Electrical Energy, Power
Combination of Resistors- Series and Parallel
Cells, EMF, Internal Resistance
Cells in Series and in Parallel
Kirchhoff’s Rules
Wheatstone Bridge
Meter Bridge
Potentiometer

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NCERT Exemplar Class 12 Physics Chapter Wise Links

Chapter 1 Electric Charges and Fields

Chapter 2 Electrostatic Potential and Capacitance

Chapter 4 Moving Charges and Magnetism

Chapter 5 Magnetism and Matter

Chapter 6 Electromagnetic Induction

Chapter 7 Alternating Current

Chapter 8 Electromagnetic Waves

Chapter 9 Ray Optics and Optical Instruments

Chapter 10 Wave Optics

Chapter 11 Dual Nature of Radiation and Matter

Chapter 12 Atoms

Chapter 13 Nuclei

Chapter 14 Semiconductor Electronics

Chapter 15 Communication Systems

Important Topics To Cover For Exams From NCERT Exemplar Class 12 Physics Solutions Chapter 3 Current Electricity

· NCERT Exemplar solutions for Class 12 Physics chapter 3 introduces new principles/laws as OHM’s law, Kirchhoff’s rule, etc., which display and govern the flow of current in various devices, and how it can be determined with the help of other factors.

· Students will study different circuits in which a number of resistors and cells are interconnected for which different calculations need to be done to obtain different values of current, resistance, etc., with the help of Class 12 Physics NCERT Exemplar solutions chapter 3

· NCERT Exemplar Class 12 Physics solutions chapter 3 also introduces different devices such as potentiometer, meter bridge and exhibits the methods, and formulas for understanding current, resistance, etc., through these devices.

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Frequently Asked Question (FAQs)

1. Is this chapter important from exam POV?

Yes, current electricity is one of the most crucial chapters that one needs to focus on for getting good marks in boards and entrance exams.

2. How many questions are solved in this chapter?

Our teachers have solved all questions from NCERT exemplar Class 12 Physics chapter 3 current electricity with complete steps and details.

3. How to use these solutions to the best?

One can make use of these solutions to understand the questions to the best and also understand how to solve questions in exams.

Also Read

NCERT Class 12 Physics Chapter 9 Notes Ray Optics and Optical Instruments - Download PDF

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Questions related to CBSE Class 12th

Have a question related to CBSE Class 12th ?

I am interested in graphic designing and coding. how do I make a career .which stream should I go.what engineering subject to take

Hello aspirant,

The purpose of graphic design extends beyond the brand's look. Nevertheless, by conveying what the brand stands for, it significantly aids in the development of a sense of understanding between a company and its audience. The future in the field of graphic designing is very promising.

There are various courses available for graphic designing. To know more information about these courses and much more details, you can visit our website by clicking on the link given below.

https://www.careers360.com/courses/graphic-designing-course

Thank you

Hope this information helps you.

Read Complete Answer

Sajal Trivedi 29 January,2024

i couldn't clear 1st compartment (which held in August 2022) cbse class 12th so can I give improvement in all subjects which to be held on March 2023. tell me a solution i need more than 75% in class 12th

hello,

Yes you can appear for the compartment paper again since CBSE gives three chances to a candidate to clear his/her exams so you still have two more attempts. However, you can appear for your improvement paper for all subjects but you cannot appear for the ones in which you have failed.

I hope this was helpful!

Good Luck

Read Complete Answer

Upasana Barman 24 August,2022

i was not able to clear 1st compartment and now I have to give 2nd compartment so can I give improvement exam next year? plz tell me very much tensed(cbse class 12th)

Hello dear,

If you was not able to clear 1st compartment and now you giving second compartment so YES, you can go for your improvement exam next year but if a student receives an improvement, they are given the opportunity to retake the boards as a private candidate the following year, but there are some requirements. First, the student must pass all of their subjects; if they received a compartment in any subject, they must then pass the compartment exam before being eligible for the improvement.

As you can registered yourself as private candidate for giving your improvement exam of 12 standard CBSE(Central Board of Secondary Education).For that you have to wait for a whole year which is bit difficult for you.

Positive side of waiting for whole year is you have a whole year to preparing yourself for your examination. You have no distraction or something which may causes your failure in the exams. In whole year you have to stay focused on your 12 standard examination for doing well in it. By this you get a highest marks as a comparison of others.

Believe in Yourself! You can make anything happen

All the very best.

Read Complete Answer

Mayankjha.student2007 23 August,2022

if i am giving improvement in one subject this year, will i be able to give improvement in more subjects next year?

Hello Student,

I appreciate your Interest in education. See the improvement is not restricted to one subject or multiple subjects and we cannot say if improvement in one subject in one year leads to improvement in more subjects in coming year.

You just need to have a revision of all subjects what you have completed in the school. have a revision and practice of subjects and concepts helps you better.

All the best.

Read Complete Answer

Nuthalapati Vyshnavi 21 August,2022

I got an RT for 2 subjects, so do I have to give exams for all the subjects in the coming year or just the 2. pls help me

Hi,

You just need to give the exams for the concerned two subjects in which you have got RT. There is no need to give exam for all of your subjects, you can just fill the form for the two subjects only.

Read Complete Answer

Muskan Dhalwal 17 August,2022

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Popular CBSE Class 12th Questions

A block of mass 0.50 kg is moving with a speed of 2.00 ms^-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

Option 1) $0.34\; J$	Option 2) $0.16\; J$
Option 3) $1.00\; J$	Option 4) $0.67\; J$

A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times. Assume that the potential energy lost each time he lowers the mass is dissipated. How much fat will he use up considering the work done only when the weight is lifted up ? Fat supplies 3.8×10⁷J of energy per kg which is converted to mechanical energy with a 20% efficiency rate. Take g = 9.8 ms⁻² :

Option 1)

2.45×10⁻³ kg

Option 2)

6.45×10⁻³ kg

Option 3)

9.89×10⁻³ kg

Option 4)

12.89×10⁻³ kg

An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range

Option 1) $2,000 \; J - 5,000\; J$	Option 2) $200 \, \, J - 500 \, \, J$
Option 3) $2\times 10^{5}J-3\times 10^{5}J$	Option 4) $20,000 \, \, J - 50,000 \, \, J$

A particle is projected at 60⁰ to the horizontal with a kinetic energy $K$ . The kinetic energy at the highest point

Option 1) $K/2\,$	Option 2) $\; K\;$
Option 3) $zero\;$	Option 4) $K/4$

In the reaction,

$2Al_{(s)}+6HCL_{(aq)}\rightarrow 2Al^{3+}\, _{(aq)}+6Cl^{-}\, _{(aq)}+3H_{2(g)}$

Option 1) $11.2\, L\, H_{2(g)}$ at STP is produced for every mole $HCL_{(aq)}$ consumed	Option 2) $6L\, HCl_{(aq)}$ is consumed for ever $3L\, H_{2(g)}$ produced
Option 3) $33.6 L\, H_{2(g)}$ is produced regardless of temperature and pressure for every mole Al that reacts	Option 4) $67.2\, L\, H_{2(g)}$ at STP is produced for every mole Al that reacts .

How many moles of magnesium phosphate, $Mg_{3}(PO_{4})_{2}$ will contain 0.25 mole of oxygen atoms?

Option 1) 0.02	Option 2) 3.125 × 10^-2
Option 3) 1.25 × 10^-2	Option 4) 2.5 × 10^-2

If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will

Option 1) decrease twice	Option 2) increase two fold
Option 3) remain unchanged	Option 4) be a function of the molecular mass of the substance.

With increase of temperature, which of these changes?

Option 1) Molality	Option 2) Weight fraction of solute
Option 3) Fraction of solute present in water	Option 4) Mole fraction.

Number of atoms in 558.5 gram Fe (at. wt.of Fe = 55.85 g mol^-1) is

Option 1) twice that in 60 g carbon	Option 2) 6.023 × 10²²
Option 3) half that in 8 g He	Option 4) 558.5 × 6.023 × 10²³

A pulley of radius 2 m is rotated about its axis by a force F = (20t - 5t²) newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10 kg m² , the number of rotations made by the pulley before its direction of motion if reversed, is

Option 1) less than 3	Option 2) more than 3 but less than 6
Option 3) more than 6 but less than 9	Option 4) more than 9

Data Administrator

Database professionals use software to store and organise data such as financial information, and customer shipping records. Individuals who opt for a career as data administrators ensure that data is available for users and secured from unauthorised sales. DB administrators may work in various types of industries. It may involve computer systems design, service firms, insurance companies, banks and hospitals.

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The field of biomedical engineering opens up a universe of expert chances. An Individual in the biomedical engineering career path work in the field of engineering as well as medicine, in order to find out solutions to common problems of the two fields. The biomedical engineering job opportunities are to collaborate with doctors and researchers to develop medical systems, equipment, or devices that can solve clinical problems. Here we will be discussing jobs after biomedical engineering, how to get a job in biomedical engineering, biomedical engineering scope, and salary.

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A career as ethical hacker involves various challenges and provides lucrative opportunities in the digital era where every giant business and startup owns its cyberspace on the world wide web. Individuals in the ethical hacker career path try to find the vulnerabilities in the cyber system to get its authority. If he or she succeeds in it then he or she gets its illegal authority. Individuals in the ethical hacker career path then steal information or delete the file that could affect the business, functioning, or services of the organization.

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GIS Expert

GIS officer work on various GIS software to conduct a study and gather spatial and non-spatial information. GIS experts update the GIS data and maintain it. The databases include aerial or satellite imagery, latitudinal and longitudinal coordinates, and manually digitized images of maps. In a career as GIS expert, one is responsible for creating online and mobile maps.

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Data Analyst

The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.

Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.

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Individuals who opt for a career as geothermal engineers are the professionals involved in the processing of geothermal energy. The responsibilities of geothermal engineers may vary depending on the workplace location. Those who work in fields design facilities to process and distribute geothermal energy. They oversee the functioning of machinery used in the field.

3 Jobs Available

Database Architect

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Individuals who opt for a career as a remote sensing technician possess unique personalities. Remote sensing analysts seem to be rational human beings, they are strong, independent, persistent, sincere, realistic and resourceful. Some of them are analytical as well, which means they are intelligent, introspective and inquisitive.

Remote sensing scientists use remote sensing technology to support scientists in fields such as community planning, flight planning or the management of natural resources. Analysing data collected from aircraft, satellites or ground-based platforms using statistical analysis software, image analysis software or Geographic Information Systems (GIS) is a significant part of their work. Do you want to learn how to become remote sensing technician? There's no need to be concerned; we've devised a simple remote sensing technician career path for you. Scroll through the pages and read.

3 Jobs Available

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4 Jobs Available

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Underwriter

An underwriter is a person who assesses and evaluates the risk of insurance in his or her field like mortgage, loan, health policy, investment, and so on and so forth. The underwriter career path does involve risks as analysing the risks means finding out if there is a way for the insurance underwriter jobs to recover the money from its clients. If the risk turns out to be too much for the company then in the future it is an underwriter who will be held accountable for it. Therefore, one must carry out his or her job with a lot of attention and diligence.

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3 Jobs Available

Operations Manager

Individuals in the operations manager jobs are responsible for ensuring the efficiency of each department to acquire its optimal goal. They plan the use of resources and distribution of materials. The operations manager's job description includes managing budgets, negotiating contracts, and performing administrative tasks.

3 Jobs Available

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2 Jobs Available

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A Researcher is a professional who is responsible for collecting data and information by reviewing the literature and conducting experiments and surveys. He or she uses various methodological processes to provide accurate data and information that is utilised by academicians and other industry professionals. Here, we will discuss what is a researcher, the researcher's salary, types of researchers.

2 Jobs Available

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5 Jobs Available

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A career as Transportation Planner requires technical application of science and technology in engineering, particularly the concepts, equipment and technologies involved in the production of products and services. In fields like land use, infrastructure review, ecological standards and street design, he or she considers issues of health, environment and performance. A Transportation Planner assigns resources for implementing and designing programmes. He or she is responsible for assessing needs, preparing plans and forecasts and compliance with regulations.

3 Jobs Available

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Individuals who opt for a career as an environmental engineer are construction professionals who utilise the skills and knowledge of biology, soil science, chemistry and the concept of engineering to design and develop projects that serve as solutions to various environmental problems.

2 Jobs Available

Safety Manager

A Safety Manager is a professional responsible for employee’s safety at work. He or she plans, implements and oversees the company’s employee safety. A Safety Manager ensures compliance and adherence to Occupational Health and Safety (OHS) guidelines.

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Conservation Architect

A Conservation Architect is a professional responsible for conserving and restoring buildings or monuments having a historic value. He or she applies techniques to document and stabilise the object’s state without any further damage. A Conservation Architect restores the monuments and heritage buildings to bring them back to their original state.

2 Jobs Available

Structural Engineer

A Structural Engineer designs buildings, bridges, and other related structures. He or she analyzes the structures and makes sure the structures are strong enough to be used by the people. A career as a Structural Engineer requires working in the construction process. It comes under the civil engineering discipline. A Structure Engineer creates structural models with the help of computer-aided design software.

2 Jobs Available

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Are you searching for a Field Surveyor Job Description? A Field Surveyor is a professional responsible for conducting field surveys for various places or geographical conditions. He or she collects the required data and information as per the instructions given by senior officials.

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Orthotists and Prosthetists are professionals who provide aid to patients with disabilities. They fix them to artificial limbs (prosthetics) and help them to regain stability. There are times when people lose their limbs in an accident. In some other occasions, they are born without a limb or orthopaedic impairment. Orthotists and prosthetists play a crucial role in their lives with fixing them to assistive devices and provide mobility.

6 Jobs Available

Pathologist

A career in pathology in India is filled with several responsibilities as it is a medical branch and affects human lives. The demand for pathologists has been increasing over the past few years as people are getting more aware of different diseases. Not only that, but an increase in population and lifestyle changes have also contributed to the increase in a pathologist’s demand. The pathology careers provide an extremely huge number of opportunities and if you want to be a part of the medical field you can consider being a pathologist. If you want to know more about a career in pathology in India then continue reading this article.

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Veterinary Doctor

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Speech Therapist

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Gynaecologist

Gynaecology can be defined as the study of the female body. The job outlook for gynaecology is excellent since there is evergreen demand for one because of their responsibility of dealing with not only women’s health but also fertility and pregnancy issues. Although most women prefer to have a women obstetrician gynaecologist as their doctor, men also explore a career as a gynaecologist and there are ample amounts of male doctors in the field who are gynaecologists and aid women during delivery and childbirth.

4 Jobs Available

Audiologist

The audiologist career involves audiology professionals who are responsible to treat hearing loss and proactively preventing the relevant damage. Individuals who opt for a career as an audiologist use various testing strategies with the aim to determine if someone has a normal sensitivity to sounds or not. After the identification of hearing loss, a hearing doctor is required to determine which sections of the hearing are affected, to what extent they are affected, and where the wound causing the hearing loss is found. As soon as the hearing loss is identified, the patients are provided with recommendations for interventions and rehabilitation such as hearing aids, cochlear implants, and appropriate medical referrals. While audiology is a branch of science that studies and researches hearing, balance, and related disorders.

3 Jobs Available

Oncologist

An oncologist is a specialised doctor responsible for providing medical care to patients diagnosed with cancer. He or she uses several therapies to control the cancer and its effect on the human body such as chemotherapy, immunotherapy, radiation therapy and biopsy. An oncologist designs a treatment plan based on a pathology report after diagnosing the type of cancer and where it is spreading inside the body.

3 Jobs Available

Anatomist

Are you searching for an ‘Anatomist job description’? An Anatomist is a research professional who applies the laws of biological science to determine the ability of bodies of various living organisms including animals and humans to regenerate the damaged or destroyed organs. If you want to know what does an anatomist do, then read the entire article, where we will answer all your questions.

2 Jobs Available

Actor

For an individual who opts for a career as an actor, the primary responsibility is to completely speak to the character he or she is playing and to persuade the crowd that the character is genuine by connecting with them and bringing them into the story. This applies to significant roles and littler parts, as all roles join to make an effective creation. Here in this article, we will discuss how to become an actor in India, actor exams, actor salary in India, and actor jobs.

4 Jobs Available

Acrobat

Individuals who opt for a career as acrobats create and direct original routines for themselves, in addition to developing interpretations of existing routines. The work of circus acrobats can be seen in a variety of performance settings, including circus, reality shows, sports events like the Olympics, movies and commercials. Individuals who opt for a career as acrobats must be prepared to face rejections and intermittent periods of work. The creativity of acrobats may extend to other aspects of the performance. For example, acrobats in the circus may work with gym trainers, celebrities or collaborate with other professionals to enhance such performance elements as costume and or maybe at the teaching end of the career.

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Video Game Designer

Career as a video game designer is filled with excitement as well as responsibilities. A video game designer is someone who is involved in the process of creating a game from day one. He or she is responsible for fulfilling duties like designing the character of the game, the several levels involved, plot, art and similar other elements. Individuals who opt for a career as a video game designer may also write the codes for the game using different programming languages.

Depending on the video game designer job description and experience they may also have to lead a team and do the early testing of the game in order to suggest changes and find loopholes.

3 Jobs Available

Radio Jockey

Radio Jockey is an exciting, promising career and a great challenge for music lovers. If you are really interested in a career as radio jockey, then it is very important for an RJ to have an automatic, fun, and friendly personality. If you want to get a job done in this field, a strong command of the language and a good voice are always good things. Apart from this, in order to be a good radio jockey, you will also listen to good radio jockeys so that you can understand their style and later make your own by practicing.

A career as radio jockey has a lot to offer to deserving candidates. If you want to know more about a career as radio jockey, and how to become a radio jockey then continue reading the article.

3 Jobs Available

Choreographer

The word “choreography" actually comes from Greek words that mean “dance writing." Individuals who opt for a career as a choreographer create and direct original dances, in addition to developing interpretations of existing dances. A Choreographer dances and utilises his or her creativity in other aspects of dance performance. For example, he or she may work with the music director to select music or collaborate with other famous choreographers to enhance such performance elements as lighting, costume and set design.

2 Jobs Available

Social Media Manager

A career as social media manager involves implementing the company’s or brand’s marketing plan across all social media channels. Social media managers help in building or improving a brand’s or a company’s website traffic, build brand awareness, create and implement marketing and brand strategy. Social media managers are key to important social communication as well.

2 Jobs Available

Photographer

Photography is considered both a science and an art, an artistic means of expression in which the camera replaces the pen. In a career as a photographer, an individual is hired to capture the moments of public and private events, such as press conferences or weddings, or may also work inside a studio, where people go to get their picture clicked. Photography is divided into many streams each generating numerous career opportunities in photography. With the boom in advertising, media, and the fashion industry, photography has emerged as a lucrative and thrilling career option for many Indian youths.

2 Jobs Available

Producer

An individual who is pursuing a career as a producer is responsible for managing the business aspects of production. They are involved in each aspect of production from its inception to deception. Famous movie producers review the script, recommend changes and visualise the story.

They are responsible for overseeing the finance involved in the project and distributing the film for broadcasting on various platforms. A career as a producer is quite fulfilling as well as exhaustive in terms of playing different roles in order for a production to be successful. Famous movie producers are responsible for hiring creative and technical personnel on contract basis.

2 Jobs Available

Copy Writer

In a career as a copywriter, one has to consult with the client and understand the brief well. A career as a copywriter has a lot to offer to deserving candidates. Several new mediums of advertising are opening therefore making it a lucrative career choice. Students can pursue various copywriter courses such as Journalism, Advertising, Marketing Management. Here, we have discussed how to become a freelance copywriter, copywriter career path, how to become a copywriter in India, and copywriting career outlook.

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Vlogger

In a career as a vlogger, one generally works for himself or herself. However, once an individual has gained viewership there are several brands and companies that approach them for paid collaboration. It is one of those fields where an individual can earn well while following his or her passion.

Ever since internet costs got reduced the viewership for these types of content has increased on a large scale. Therefore, a career as a vlogger has a lot to offer. If you want to know more about the Vlogger eligibility, roles and responsibilities then continue reading the article.

3 Jobs Available

Publisher

For publishing books, newspapers, magazines and digital material, editorial and commercial strategies are set by publishers. Individuals in publishing career paths make choices about the markets their businesses will reach and the type of content that their audience will be served. Individuals in book publisher careers collaborate with editorial staff, designers, authors, and freelance contributors who develop and manage the creation of content.

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Journalist

Careers in journalism are filled with excitement as well as responsibilities. One cannot afford to miss out on the details. As it is the small details that provide insights into a story. Depending on those insights a journalist goes about writing a news article. A journalism career can be stressful at times but if you are someone who is passionate about it then it is the right choice for you. If you want to know more about the media field and journalist career then continue reading this article.

3 Jobs Available

Editor

Individuals in the editor career path is an unsung hero of the news industry who polishes the language of the news stories provided by stringers, reporters, copywriters and content writers and also news agencies. Individuals who opt for a career as an editor make it more persuasive, concise and clear for readers. In this article, we will discuss the details of the editor's career path such as how to become an editor in India, editor salary in India and editor skills and qualities.

3 Jobs Available

Reporter

Individuals who opt for a career as a reporter may often be at work on national holidays and festivities. He or she pitches various story ideas and covers news stories in risky situations. Students can pursue a BMC (Bachelor of Mass Communication), B.M.M. (Bachelor of Mass Media), or MAJMC (MA in Journalism and Mass Communication) to become a reporter. While we sit at home reporters travel to locations to collect information that carries a news value.

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Are you searching for a Corporate Executive job description? A Corporate Executive role comes with administrative duties. He or she provides support to the leadership of the organisation. A Corporate Executive fulfils the business purpose and ensures its financial stability. In this article, we are going to discuss how to become corporate executive.

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A multimedia specialist is a media professional who creates, audio, videos, graphic image files, computer animations for multimedia applications. He or she is responsible for planning, producing, and maintaining websites and applications.

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A quality controller plays a crucial role in an organisation. He or she is responsible for performing quality checks on manufactured products. He or she identifies the defects in a product and rejects the product.

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The Process Development Engineers design, implement, manufacture, mine, and other production systems using technical knowledge and expertise in the industry. They use computer modeling software to test technologies and machinery. An individual who is opting career as Process Development Engineer is responsible for developing cost-effective and efficient processes. They also monitor the production process and ensure it functions smoothly and efficiently.

2 Jobs Available

QA Manager

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AWS Solution Architect

An AWS Solution Architect is someone who specializes in developing and implementing cloud computing systems. He or she has a good understanding of the various aspects of cloud computing and can confidently deploy and manage their systems. He or she troubleshoots the issues and evaluates the risk from the third party.

4 Jobs Available

Azure Administrator

An Azure Administrator is a professional responsible for implementing, monitoring, and maintaining Azure Solutions. He or she manages cloud infrastructure service instances and various cloud servers as well as sets up public and private cloud systems.

4 Jobs Available

Computer Programmer

Careers in computer programming primarily refer to the systematic act of writing code and moreover include wider computer science areas. The word 'programmer' or 'coder' has entered into practice with the growing number of newly self-taught tech enthusiasts. Computer programming careers involve the use of designs created by software developers and engineers and transforming them into commands that can be implemented by computers. These commands result in regular usage of social media sites, word-processing applications and browsers.

3 Jobs Available

Product Manager

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Information Security Manager

Individuals in the information security manager career path involves in overseeing and controlling all aspects of computer security. The IT security manager job description includes planning and carrying out security measures to protect the business data and information from corruption, theft, unauthorised access, and deliberate attack

3 Jobs Available

ITSM Manager

3 Jobs Available

Automation Test Engineer

An Automation Test Engineer job involves executing automated test scripts. He or she identifies the project’s problems and troubleshoots them. The role involves documenting the defect using management tools. He or she works with the application team in order to resolve any issues arising during the testing process.

2 Jobs Available