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NCERT Solutions For Class 10 Science Chapter 11 Electricity

NCERT Solutions For Class 10 Science Chapter 11 Electricity

Edited By Vishal kumar | Updated on Mar 20, 2025 09:30 PM IST | #CBSE Class 10th

Nowadays, electricity has become an essential part of our daily life. Almost everything runs on electricity from switching on lights and fans to using mobile phones, laptops and computers. It is used in homes, colleges, factories, hospitals, industries, businesses and even in agriculture. Everyone is so dependent on electricity that even a short power cut can affect our daily routine.

This Story also Contains
  1. NCERT Class 10 Science Chapter 11 Question Answer: Download PDF
  2. Class 10 science Chapter 11 ncert Solutions - topic 11.2
  3. NCERT solutions for class 10 science chapter 11 Electricity topic 11.5
  4. Class 10 electricity exercise solutions topic 11.6
  5. NCERT solutions for class 10 science chapter 11 Electricity topic 11.6
  6. NCERT solutions for class 10 science chapter 11 Electricity topic 11.8
  7. Class 10 electricity question answer - Exercise Solution
  8. Class 10 Electricity Question Answer - Important Topics
  9. Electricity Class 10 Exercise Solutions - Types of Questions Asked
  10. About NCERT Class 10 Science Chapter 11 Electricity
NCERT Solutions For Class 10 Science Chapter 11 Electricity
NCERT Solutions For Class 10 Science Chapter 11 Electricity

Looking for the best and easy-to-understand NCERT Solutions for Class 10 Science ? You’re in the right place! At Careers360 because here our solutions are designed in a simple and clear way to help you understand each concept with ease. Created by respected subject experts, these answers not only help you with textbook questions but also provide useful tips to boost your preparation .

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In Chapter 11 – Electricity, students learn how electric circuits work along with basic concepts like electric current, voltage, resistance, and Ohm’s Law. The solutions help students solve various types of problems, such as calculating the current in a circuit, finding the resistance of materials, and determining the power consumed by electrical devices. This chapter is important not only for exams but also for understanding real-life electrical systems

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JEE Main Important Mathematics Formulas

As per latest 2024 syllabus. Maths formulas, equations, & theorems of class 11 & 12th chapters

NCERT Solutions for Class 10 Science: Important Formulas and Diagrams + eBook link

Understanding Important formulas is very important for understanding the topic well and solving numerical problems. These formulas are used to calculate the current, voltage, power, and resistance.

  • Current:

Current (I)= Charge(Q)/ Time taken(t)

  • Voltage:

Voltage(v)= Work Done(W) / Charge(Q)

  • Resistance:

R= ρl / A= V/I

Where:

ρ = Resistivity, l = length, A = Area

  • Ohm's Law:

V = I × R

  • Resistors in Series:

Rt = R1 + R2 + R3 + ...

  • Resistors in Parallel:

1/Rt = 1/R1 + 1/R2 + 1/R3 + ...

Download - NCERT Class 10 Science: Chapterwise Important Formulas, Diagrams, And Points

This PDF comprises important formulas, diagrams, and key points for each chapter. Utilizing this valuable resource, students can score well in less time and use it for quick revision during weekly tests and exams, ensuring better academic performance.

NCERT Class 10 Science Chapter 11 Question Answer: Download PDF

Download Solution PDF

CBSE NCERT Class 10 Science Chapter 11: Electricity

Solving the CBSE class 10 Questions. So, that students can understand. first will solve the intext Question which covers numerous topics.

Topic:11.1

Q.1 What does an electric circuit mean?

Answer:

A closed and continuous path of electric current is known as the electric circuit. It consists of electric circuit elements like batteries, resistors, etc, and electric devices like a switch and measuring devices like ammeters, etc.

Q.2 Define the unit of currcurrent ent.

Answer:

Ampere(A) is unit of current.1A is flow of 1C of charge through a wire in 1s of time.

current I=qt

1A=1C1sec

Q.3 Calculate the number of electrons constituting one coulomb of charge.

Answer:

Given: Q=1C

We know that the charge of an electron e=1.6×1019C

Q=nen=Qen=11.6×1019=6.25×1018


Thus, the number of electrons constituting one coulomb of charge is 6×1018 electrons.

Class 10 science Chapter 11 ncert Solutions - topic 11.2

Q.1 Name a device that helps to maintain a potential difference across a conductor.

Answer:

Battery, cell or power supply source helps to maintain a potential difference across a conductor.

Q.2 What is meant by saying that the potential difference between two points is 1 V?

Answer:

The potential difference between two points is 1 V means 1 J of work is required to move a charge of amount 1C from one point to another.

Q.3 How much energy is given to each coulomb of charge passing through a 6 V battery?

Answer:

Given: potential difference = 6V and charge =1C.

 Potential difference = work done  charge 6= work done 1 work done =6×1=6 J


Thus, 6J energy is given to each coulomb of charge passing through a 6 V battery.

NCERT solutions for class 10 science chapter 11 Electricity topic 11.5

Q.1 On what factors does the resistance of a conductor depend?

Answer:

The resistance of a conductor depends on :

1. Cross-section area of the conductor.

2. Length of conductor

3. The temperature of the conductor.

4. Nature of material of the conductor.

Q.2 Will current flow more easily through a thick wire or a thin wire of the same material, when connected to the same source? Why?

Answer:

We know that resistance is given as

R=ρlAremain

R= resistance
ρ= resistivity
I=length of wire
A= are cross-section
Resistance is inversely proportional to the area of the cross-section.
Thicker the wire more is cross-sectional area resulting in less resistance resulting in more current flow.

Q.3 Let the resistance of an electrical component remains constant while the potential difference across the two ends of the component decreases to half of its former value. What change will occur in the current through it?

Answer:

By Ohm's law,

V=IRI=VR

V= potential difference
I =current
R= resistance
Now, the potential difference is reduced to half i.e.

V=V2

R=R= resistance
I' =current

I=V2R=V2R=I2

Q.4 Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal?

Answer:

The resistivity of an alloy is higher than pure metal so alloy does not melt at high temperature. Thus, coils of electric toasters and electric irons are made of an alloy rather than a pure metal.

Q.5 Use the data in Table 12.2 to answer the following –

(a) Which among iron and mercury is a better conductor?
(b) Which material is the best conductor?

1644209855219

Answer:

Lower the value of resistivity lower will be the resistance for a material of given area and length. If resistance is law current flow will be high when a potential difference is applied across the conductor.

(a). resistivity of iron =10.0×108Ω m
the resistivity of mercury =94×108Ω m
the resistivity of mercury is more than iron so iron is a better conductor than mercury.

(b)From the table, we can observe silver has the lowest resistivity so it is the best conductor.

Class 10 electricity exercise solutions topic 11.6

Q.1 Draw a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5Ω resistor, an 8Ω resistor, a 12Ω resistor, and a plug key, all connected in series.

Answer:

The schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5Ω resistor, an 8Ω resistor, and a 12Ω resistor, and a plug key, all connected in series is as shown below :

1644209887262

Q.2 Redraw the circuit of Question 1, putting in an ammeter to measure the current through the resistors and a voltmeter to measure the potential difference across the 12Ω resistor. What would be the readings in the ammeter and the voltmeter?

Answer:

The diagram is as shown :

1644210295069

Resistance of circuit =R=5+8+12=25

Potential = 6V

V=IRI=VR=625=0.24 A


Now, for 12 ohm resistor, current =0.24 A.
By Ohm's law,

V=IR=0.24×12=2.88 V


The reading of the ammeter is 0.24 A and the voltmeter is 2.88 V.

NCERT solutions for class 10 science chapter 11 Electricity topic 11.6

Q.1 Judge the equivalent resistance when the following are connected in parallel –

(a) 1Ω and 106Ω (b) 1Ω and 103Ω, and 106Ω,

Answer:
(a) 1Ω and 106Ω
R= Equivalent resistance

1R=1R1+1R21R=11+11061R=106+1106R=106106+11Ω

(b) 1Ω and 103Ω, and 106Ω,
R= Equivalent resistance

1R=1R1+1R2+1R3

1R=11+1103+11061R=106+103+1106R=106106+103+1=0.999Ω1Ω


Q.2 An electric lamp of 100Ω , a toaster of resistance 50Ω and a water filter of resistance 500Ω are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances, and what is the current through it?

Answer:

Given : R1=100Ω,R2=50Ω,R3=500Ω
R= Equivalent resistance

1R=1R1+1R2+1R31R=1100+150+15001R=5+10+1500=16500R=50016=31.25Ω


By Ohm's law,

I=VR=22031.25=7.04A


Hence, the resistance of electric iron is 31.25, and the current through it is 7.04 A.

Q.3 What are the advantages of connecting electrical devices in parallel with the battery instead of connecting them in series?

Answer:

In parallel, there is no division of voltage among the appliances so the potential difference across all appliances is equal and the total effective resistance of a circuit can be reduced. Hence, connecting electrical devices in parallel with the battery is beneficial instead of connecting them in series.

Q.4 How can three resistors of resistances 2Ω,3Ω, and 6Ω be connected to give a total resistance of

(a) 4Ω,(b)1Ω ?

Answer:
(a) R1=3,R2=6,R3=2
R= Equivalent resistance

1R12=1R1+1R21R12=13+161R12=2+16R12=63=2R=R12+R3=2+2=4

1644210349354

(b).1 Ohm

R=Equivalent resistance

Connect all three resistors in parallel

1R=1R1+1R2+1R31R=12+13+161R=6+3+16R=166=1Ω

Q.5 (a) What is (a) the highest total resistance that can be secured by combinations of four coils of resistance

  • 4Ω,8Ω,12Ω,24Ω?


Answer:

(a) the highest total resistance is obtained when all the resistors are connected in a series

4+8+12+24=48Ω

Q.5 (b) What is (b) the lowest total resistance that can be secured by combinations of four coils of resistance

  • 4Ω,8Ω,12Ω,24Ω?

Answer :

(b) the lowest total resistance is R is obtained when all the resistors are connected in parallel.

1R=14+18+112+1241R=6+3+2+124=1224R=2412=2

NCERT solutions for class 10 science chapter 11 Electricity topic 11.7

Q. 1. Why does the cord of an electric heater not glow while the heating element does?

Answer:

The heating element of an electric heater is a resistor.

The amount of heat production is given as, H=I2Rt.

The resistance of elements (alloys) of an electric heater is high. As current flows through this element, it becomes hot and glows red.

The resistance of cord (metal like Cu or Al)of an electric heater is low. As current flow through this element, it does not becomes hot and does not glow red.

Q. 2. Compute the heat generated while transferring 96000 coulomb of charge in one hour through a potential difference of 50 V.

Answer:

Given: potential difference = 50 V.

Charge = 9600 C

time = 1 hr=3600 s

I= charge  time ( seconds )=96003600=803 A So, H= VIt H=50×803×3600H=4800000 J=4.8×106 J

Q. 3 An electric iron of resistance 20Ω takes a current of 5 A. Calculate the heat developed in 30 s.

Answer:

Given : resistance =R=20Ω, TIME =30 s, current =I=5 A

V=IRV=5×20=100 VH=VItH=100×5×30H=15000 J=1.5×104 J

NCERT solutions for class 10 science chapter 11 Electricity topic 11.8

Q.1 What determines the rate at which energy is delivered by a current?

Answer:

The rate at which energy is delivered by a current is power.

Power P=I 2 R, where I is the current and R is the resistance of the circuit/ appliance. Power depends on the current drawn by the appliance and the resistance of the appliance.

Q.2 An electric motor takes 5 A from a 220 V line. Determine the power of the motor and the energy consumed in 2 h.

Answer:

Given: I= 5 A and V= 220 V.

Power=P=VI

P=220×5=1100 W
Time =2hr=2×60×60=7200s
The energy consumed = power × time

=1100×7200 J=7920000 J


Power of motor =1100 W
Energy consumed by motor =7920000 J

Class 10 electricity question answer - Exercise Solution

Solving the Exercise Problem is a good habit, as it makes you more confident and also decreases the stress for students. So, in this, we will cover All NCERT questions with their proper solution.

Q. 1. A piece of wire of resistance R is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R , then the ratio R/R is –

(a) 1/25 (b) 1/5 (c) 5 (d) 25

Answer:

Given: A piece of wire of resistance R is cut into five equal parts.

Resistance of each part is R5.

1R=5R+5R+5R+5R+5R1R=25RR=R25 Hence, RR=RR25=25$= l 

Thus, option D is correct.

Q. 2 . Which of the following terms does not represent electrical power in a circuit?

(a) I2R(b)IR2(c)VI(d)V2/R

Answer:
We know that power =P=VI. 1

Put, V=IR in equation 1

P=I2R


Pur, I=VR in equation 1 ,

P=V×VR=V2R

P= power, V= potencial difference, I= current, R= resistance
P cannot be IR2.

Thus, option B is correct.

Q. 3. An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the power consumed will be

(a) 100 W (b) 75 W (c) 50 W (d) 25 W

Answer:

Given : V=220 V,P=100 W

P=V2R


The resistance of the bulb

R=V2P=(220)2100=484Ω


If bulb is operated on 110 Vand resistance is the same, the power consumed will be P

P=V2R=(110)2484=25W

Hence, option D is correct.

Q. 4. Two conducting wires of the same material and of equal lengths and equal diameters are first connected in series and then parallel in a circuit across the same potential difference. The ratio of heat produced in series and parallel combinations would be

(a) 1:2 (b) 2:1 (c) 1:4 (d) 4:1

Answer:

If resistors are connected in parallel, the net resistance is given as

1Rp=1R1+1R21Rp=1R+1R1Rp=2RRp=R2


If resistors are connected in series, the net resistance is given as

Rs=R1+R2=R+R=2R


Heat produced =H=V2Rt

HsHp=V2t2RV2tR2HsHp=14Hs:Hp=1:4

Thus, option C is correct.

Q. 5. How is a voltmeter connected in the circuit to measure the potential difference between two points?

Answer:

A voltmeter should be connected in parallel, to measure the potential difference between two points.

Q. 6. A copper wire has a diameter of 0.5 mm and resistivity of 1.6×108Ω m. What will be the length of this wire to make its resistance 10Ω ? How much does the resistance change if the diameter is doubled?

Answer:

Given : diameter =d=0.5 mm and resistivity =ρ=1.6×108Ω m. resistance =R=10
Area =A

A=πd24=3.14×0.5×0.54A=0.000000019625 m2


We know

R=ρlAl=RAρ=10×0.0000000196251.6×108=122.72 m


If the diameter is doubled.

d=1 mm


Area =A

A=πd24=3.14×1×14A=0.000000785 m2


We know

R=ρlAR=1.6×108×122.720.000000785R=2.5ΩRR=2.510=14


Hence, new resistance is 14 of original resistance.

Q. 7. The values of current I flowing in a given resistor for the corresponding values of potential difference V across the resistor are given be low –

I (amperes) 0.5 1.0 2.0 3.0 4.0
V (volts) 1.6 3.4 6.7 10.2 13.2

Plot a graph between V and I and calculate the resistance of that resistor

Answer:

The plot between voltage and current is as shown :

1644210395023

The slope of the line gives resistance (R)

R=6.82=3.4Ω


Q.9. A battery of 9 V is connected in series with resistors of 02Ω , 0.3Ω , 0.4Ω , 0.5Ω and 12Ω respectively. How much current would flow through the 12Ω resistor?

Answer: Total resistance =R

R=0.2+0.3+0.4+0.5+12=13.4Ω


V=9 VI=VR=913.4=0.67 A


Hence, All resistors are in series so 0.67 A current would flow through the 12Ω resistor.

Q.10. How many 176Ω resistors (in parallel) are required to carry 5 A on a 220 V line?

Answer:

Given: V=220V and I =5A

R=VI=2205=44Ω


Let x number of resistors be connected in parallel to obtain 44 Ohm equivalent resistance.
Thus,

1R=1176+1176+............ x times 144=x176x=17644=4


Hence, 4 resistors of 176 Ohm are connected in parallel to obtain 44 Ohm.

Q.11. Show how you would connect three resistors, each of resistance 6Ω , so that the combination has a resistance of (i) 92 \Omega$ , (ii) 4Ω .

Answer:

(i) R1=R2=R3=6
R= Equivalent resistance

1R12=1R1+1R21R12=16+161R12=1+16R12=62=3R=R12+R3=3+6=9Ω

1644210424046

(ii)

R1=R2=R3=6

R= Equivalent resistance

R12=R1+R2=6+6=12Ω1R=1R12+1R31R=112+161R=1+212R=123=4

Q.12. Several electric bulbs designed to be used on a 220 V electric supply line, are rated 10 W. How many lamps can be connected in parallel with each other across the two wires of 220 V line if the maximum allowable current is 5 A?

Answer:

Given: V=220 V and P=10 W

R=V2P=220210=4840Ω


Let x be the number of bulbs.

I=5 A and V=220 VR=VI=2205=44Ω


For x bulbs of resistance 4680 Ohm, are connected in parallel to obtain 44 Ohm equivalent resistance.

Thus,

1R=14840+14840+... to x times 144=x4840x=484044=110

Hence, 110 bulbs of 4840 Ohm are connected in parallel to obtain 44 Ohm.

Q.13. A hot plate of an electric oven connected to a 220 V line has two resistance coils A and B, each of 24Ω resistance, which may be used separately, in series, or in parallel. What are the currents in the three cases?

Answer:

Given : V=220V and Resistance of each coil=R =24A

When coil is used separately,current in coil is

I=VR=22024=9.16A


When two coils are connected in series, net resistance is

R=R1+R2=24+24=48Ω

current in coil is I'

I=VR=22048=4.58 A


When two coils are connected in parallel, net resistance is

1R=124+124=224R=12Ω

current in the coil is I"

I=VR=22012=18.33 A

Q.14. Compare the power used in the 2Ω resistor in each of the following circuits:

(i) a 6 V battery in series with 1Ω and 2Ω resistors

(ii) a 4 V battery in parallel with 12Ω and 2Ω resistors.

Answer:

i) Given: V=6V

R=1+2=30hm

I=VR=63=2A


In, a series current is constant.
So, power =P

P=I2R=22×2=8W

ii) Given: V=6 V,R=2Ohm

In, parallel combination voltage in the circuit is constant.
So, power =P

P=V2R=422=8W

Q.15. Two lamps, one rated 100 W at 220 V, and the other 60 W at 220 V, are connected in parallel to an electric mains supply. What current is drawn from the line if the supply voltage is 220 V?

Answer:

Given :

For lamp one: Power =P1=100 W and V=220 V

I1=P1V=100220=0.455 A


For lamp two: Power =P2=60 W and V=220 V

I2=P2V=60220=0.273 A


Thus, the net current drawn from the supply is 0.455+0.273=0.728 A

Q.16. Which uses more energy, a 250 W TV set in 1 hr, or a 1200 W toaster in 10 minutes?

Answer:

For TV set :

Given : Power =250 W and time =1hr=3600 seconds
Energy consumed =H=PI

H=250×3600=900000J


For toaster :
Given : Power =1200 W and time =10 minutes =600 seconds
Energy consumed =H=PI

H=1200×600=720000J

Thus, the TV set uses more energy than a toaster.

Q.17. An electric heater of resistance 8Ω draws 15 A from the service mains 2 hours. Calculate the rate at which heat is developed in the heater.

Answer:

Given: R=8 Ohm ,I=15A and t= 2hr

The heat developed in the heater is H.

The heat developed in the heater is H .

H=I2Rt


The rate at which heat is developed is given as

I2Rtt=I2R=152×8=1800 J/s

Q.18(a). Explain the following.

(a) Why is the tungsten used almost exclusively for filament of electric lamps?

Answer:

The tungsten used almost exclusively for filament of electric lamps because the melting point of tungsten is very high. The bulb glows at a very high temperature. So tungsten filament does not melt when bulb glows.

Q.18.(b) Explain the following.

(b) Why are the conductors of electric heating devices, such as bread-toasters and electric irons, made of an alloy rather than a pure metal?

Answer:

The conductors of electric heating devices, such as bread toasters and electric irons, are made of an alloy rather than a pure metal because the resistivity of the alloy is more than a pure metal. So the resistance will be hight and the heating effect will be high.

Q.18.(c) Explain the following.

(c) Why is the series arrangement not used for domestic circuits?

Answer:

If any of the elements in the circuit get damaged the entire circuit will be affected. If an element brake there will not be any current flow through the circuit. So the series circuit is not preferred in the domestic circuit.

Q.18.(d) Explain the following.

(d) How does the resistance of a wire vary with its area of cross-section?

Answer:

We know that

R=ρlARα1A

Thus, the resistance of a wire is inversely proportional to its area of cross-section.

Q.18.(e) Explain the following.

(e) Why are copper and aluminum wires usually employed for electricity transmission?

Answer:

Copper and aluminum wires are usually employed for electricity transmission because they have low resistivity and they are good conductors of electricity.

Class 10 Electricity Question Answer - Important Topics

Chapter 11 of Class 10 Science is an important part of the syllabus, and each topic plays a valuable role, but here are some key topics that you should focus on. These topics can help you score well in the exam.

  • Resistance and Factors Affecting Resistance
  • Ohm’s law
  • Heating Effect of Electric Current and its Applications
  • Electric Circuit Diagrams and Symbols

Also, students can refer,

Electricity Class 10 Exercise Solutions - Types of Questions Asked

Before moving on to the board exam, students must know the types of questions that may be asked from Electricity class 10 NCERT solutions. The following types of questions are commonly found in the exam:

  • Very short answer type
  • Short answer type
  • Long answer type
  • Practical based questions

Also, check - NCERT Solutions for Class 10 Maths

About NCERT Class 10 Science Chapter 11 Electricity

Chapter 11 Electricity usually carries around 8 to 10 marks in the exam, based on past trends. In this chapter, you will learn about electric current, its uses, and related concepts.To build a strong foundation and prepare well for your exams make use of NCERT Solutions for Class 10 Science.

Key Features of NCERT Solutions for Class 10 Science Chapter 11 – Electricity

  • Concepts explained in a simple and clear manner for easy understanding
  • Well-prepared answers by expert teachers with deep subject knowledge
  • Detailed solutions are provided for tough questions
  • Solutions based on the latest CBSE syllabus
  • Includes diagrams and examples for better clarity

Students can also explore NCERT Solutions for all subjects from Class 1 to 12. These solutions are prepared by subject experts and are based on the latest CBSE syllabus and guidelines.

Also, Check NCERT Books and NCERT Syllabus here:

Frequently Asked Questions (FAQs)

1. What are the important topics covered in NCERT Class 10 Science Chapter 12 Electricity?

Important Topics - Ohm’s law , Resistivity and Resistance ,Factors that affect the Resistance of a Conductor ,Parallel and Series Combination of Resistors and their applications ,Heating Effect of Electric Current and its Applications.

2. What is the difference between resistance and resistivity?

Resistance is the opposition to the flow of electric current in a wire or device. It depends on the length, thickness, and type of material while Resistivity, on the other hand, is a property of the material itself ,it tells how much a material resists current flow, no matter its size or shape.

.

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Questions related to CBSE Class 10th

Have a question related to CBSE Class 10th ?

Hello

Since you are a domicile of Karnataka and have studied under the Karnataka State Board for 11th and 12th , you are eligible for Karnataka State Quota for admission to various colleges in the state.

1. KCET (Karnataka Common Entrance Test): You must appear for the KCET exam, which is required for admission to undergraduate professional courses like engineering, medical, and other streams. Your exam score and rank will determine your eligibility for counseling.

2. Minority Income under 5 Lakh : If you are from a minority community and your family's income is below 5 lakh, you may be eligible for fee concessions or other benefits depending on the specific institution. Some colleges offer reservations or other advantages for students in this category.

3. Counseling and Seat Allocation:

After the KCET exam, you will need to participate in online counseling.

You need to select your preferred colleges and courses.

Seat allocation will be based on your rank , the availability of seats in your chosen colleges and your preferences.

4. Required Documents :

Domicile Certificate (proof that you are a resident of Karnataka).

Income Certificate (for minority category benefits).

Marksheets (11th and 12th from the Karnataka State Board).

KCET Admit Card and Scorecard.

This process will allow you to secure a seat based on your KCET performance and your category .

check link for more details

https://medicine.careers360.com/neet-college-predictor

Hope this helps you .

Hello Aspirant,  Hope your doing great,  your question was incomplete and regarding  what exam your asking.

Yes, scoring above 80% in ICSE Class 10 exams typically meets the requirements to get into the Commerce stream in Class 11th under the CBSE board . Admission criteria can vary between schools, so it is advisable to check the specific requirements of the intended CBSE school. Generally, a good academic record with a score above 80% in ICSE 10th result is considered strong for such transitions.

hello Zaid,

Yes, you can apply for 12th grade as a private candidate .You will need to follow the registration process and fulfill the eligibility criteria set by CBSE for private candidates.If you haven't given the 11th grade exam ,you would be able to appear for the 12th exam directly without having passed 11th grade. you will need to give certain tests in the school you are getting addmission to prove your eligibilty.

best of luck!

According to cbse norms candidates who have completed class 10th, class 11th, have a gap year or have failed class 12th can appear for admission in 12th class.for admission in cbse board you need to clear your 11th class first and you must have studied from CBSE board or any other recognized and equivalent board/school.

You are not eligible for cbse board but you can still do 12th from nios which allow candidates to take admission in 12th class as a private student without completing 11th.

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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 3.8×107 J 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

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