NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current

NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current

Edited By Vishal kumar | Updated on Jul 24, 2023 09:17 AM IST | #CBSE Class 10th
Upcoming Event
CBSE Class 10th  Exam Date : 15 Feb' 2025 - 15 Feb' 2025

NCERT Solutions for Class 10 Science Chapter 13 – CBSE Free PDF Download

NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current - If you are a Class 10 student in search of class 10 science chapter 13 question answer, you have landed on the right page of Careers360. Here, you will find step-by-step NCERT solutions for Chapter 10, along with additional exercise questions designed according to the latest CBSE syllabus. Moreover, you will also have access to important formula topics of ch 13 science class 10, which will greatly aid you in scoring well in your board exams.

This Story also Contains
  1. NCERT Solutions for Class 10 Science Chapter 13 – CBSE Free PDF Download
  2. NCERT Solutions for Class 10 Science Chapter 13: Magnetic Effects of Electric Current
  3. NCERT Class 10 science ch 13 question answer Magnetic Effects of Electric Current Topic 13.1
  4. NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Topic 13.2
  5. NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Topic 13.2
  6. NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Topic 13.3
  7. NCERT Solutions for Class 10 Science- Chapter 13 Magnetic Effects of Electric Current Topic 13.4
  8. NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Topic 13.5
  9. NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Topic 13.6
  10. NCERT Solutions for Class 10 Science- Chapter 13 Magnetic Effects of Electric Current Topic 13.7
  11. NCERT Solutions for Class 10 Science- Chapter 13 Magnetic Effects of Electric Current Exercise
  12. NCERT Solutions for Class 10 Science Chapter 13 - Types of Questions Asked
NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current
NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current

This chapter holds a good weightage in your board exams. Magnetic effects of electric current class 10 solutions cover all the questions asked in the NCERT Books for Class 10 Science. This solution will be helpful in academics as well as in competitive examinations and scholarship exams like NSTSE, IOQJS etc. Through the class 10 science ch 13 question answer, you will understand the right approach to deal with any particular problem. Along with this, you can also check NCERT Solutions for Class 10 for other subjects here.

Magnetic effect of electric current class 10 gives the basics of Electromagnetic Induction. Those students who are interested to choose the Science field after Class 10 can study the Electromagnetic Induction topics in the Class 12 NCERT Physics book. The main applications that are discussed in this chapter are electric generators and motors. Questions related to these topics are covered in the magnetic effect of electric current class 10 NCERT solutions. Students can download the solution in the form of PDF and use them according to their comfort.

Pearson | PTE

Register now for PTE & Unlock 20% OFF : Use promo code: 'C360SPL20'. Valid till 31st DEC'24! Trusted by 3,500+ universities globally

Students Can Also Refer to,

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

Class 10 science chapter 13 question answer holds great significance in the board exam as it carries a substantial weightage of 10 marks. To secure full marks, students must diligently solve every question and grasp the concepts without any doubts. To assist with this, the team at Careers360 has compiled essential formula points and diagrams in the form of a PDF. Students can freely download this class 10 science ch 13 question answer, allowing them to access and utilize the formulas whenever required, ensuring better preparation and the potential to score well in their exams.

  • Magnetic Field

1690166671574

  • Electric Motor

1690166670335

  • Electric Generator (AC)

1690166727834

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

By clicking on the provided link, you can access crucial formulas, diagrams, and key points for each chapter. These resources will aid you in revising the NCERT Syllabus efficiently and scoring well in monthly quizzes, tests, and board exams, as you'll have the necessary tools for comprehensive preparation at your disposal.

NCERT Solutions for Class 10 Science Chapter 12 Electricity - Important Topics

Before coming to the details of class 10 science chapter 13 question answer Magnetic Effects Of Electric Current, let’s have a look at important topics of the magnetic effect of electric current class 10 NCERT pdf:

  • Properties of the Magnet:

Short Question: Explaining any two properties of magnets (e.g., attraction, repulsion, magnetic field, domains, etc.)

MCQ: A multiple-choice question related to magnet properties (e.g., What property of magnets allows them to attract certain metals?)

  • How does Magnetic Effect Work:

MCQ: A multiple-choice question on the basic principles of how magnetic effects work (e.g., What causes a magnetic field around a current-carrying wire?)

  • Clock Face Rule:

Short Question: Explaining the Clock Face Rule and its application in determining the direction of magnetic fields around a current-carrying conductor.

  • Fleming’s Left-Hand Rule:

Long Question: Detailed explanation of Fleming's Left-Hand Rule and its application in determining the direction of the force on a current-carrying conductor placed in a magnetic field.

  • Maxwell’s Right-Hand Thumb Rule and its Application:

Long Question: In-depth explanation of Maxwell's Right Hand Thumb Rule and its application in predicting the direction of the induced current and magnetic field in electromagnetic devices.

Download Class 10 science chapter 13 question answer Magnetic Effects of Electric Current for free.

This chapter has been renumbered as Chapter 12 in accordance with the CBSE Syllabus 2023–24.

NCERT Solutions for Class 10 Science Chapter 13: Magnetic Effects of Electric Current

Download PDF


NCERT Class 10 science ch 13 question answer Magnetic Effects of Electric Current Topic 13.1

Q.1 Why does a compass needle get deflected when brought near a bar magnet?

Answer:

The compass needle has a magnet inside it, and when it is brought near the magnet, it gets deflected due to the magnetic force between the two magnets. The South of the needle points towards the magnetic North of the bar magnet and the North of needlepoint away from the North of the bar magnet. (Like pole attracts and unlike pole repels)

NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Topic 13.2

Q.1 Draw magnetic field lines around a bar magnet.

Answer:

The magnetic field lines emerge out from the North pole of the bar magnet and merge into the South pole, that is inside the bar magnet the field lines are from South to North and outside it is from North to South.

1644211111674

Q.2 List the properties of magnetic field lines

Answer:

Some properties of magnetic field lines are

1) They never intersect with each other. If they intersect there must be two directions of the magnetic field which is not possible

2) The direction of magnetic field lines is from North pole to South pole outside the magnet and from South pole to North pole inside the magnet.

3) The field lines emerge from the north pole and merge at the south pole.

Q.3 Why don’t two magnetic field lines intersect each other?

Answer:

Two magnetic field lines do not intersect each other because the resultant magnetic field due to both poles can be in only one direction and if they intersect there will be two directions of the magnetic field which is impossible.

NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Topic 13.2

Q.1 Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right-hand rule to find out the direction of the magnetic field inside and outside the loop.

Answer:

When we pass the current clockwise, the magnetic field lines will emerge from outside the loop and will merge inside the loop.

1644211132841

Q.2 The magnetic field in a given region is uniform. Draw a diagram to represent it.

Answer:

The Uniform Magnetic Field can be represented as:

1644211154161

Q.3 Choose the correct option.

The magnetic field inside a long straight solenoid-carrying current

(a) is zero.

(b) decreases as we move towards its end.

(c) increases as we move towards its end.

(d) is the same at all points.

Answer:

The magnetic field inside a long straight solenoid-carrying current is Uniform in nature, So the magnetic field is the same at all points.

Hence option (d) is correct Answer.

NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Topic 13.3

Q.1 Which of the following property of a proton can change while it moves freely in a magnetic field? (There may be more than one correct answer).

(a) mass

(b) speed

(c) velocity

(d) momentum

Answer:

When a proton moves in the magnetic field, it experiences a force. this force will always be in a direction perpendicular to the direction of motion, so, the proton will always perform the circular motion. therefore, the velocity and momentum can change ,

Hence option (c) and (d) are the correct option.

Q.2 a) In Activity 13.7, how do we think the displacement of rod AB will be affected if current in rod AB is increased

Answer :

When a current-carrying wire is placed in the magnetic field, it experiences a force,

this force is proportional to the length of wire, the strength of the magnetic field and the magnitude of the current passing through the wire.

And hence When current in rod AB is increased, it will experience a greater force and hence will be more displaced.

Q.2 b) In Activity 13.7, how do we think the displacement of rod AB will be affected if a stronger horseshoe magnet is used;

Answer:

When a current-carrying wire is placed in the magnetic field, it experiences a force, this force is proportional to the length of wire, the strength of the magnetic field and current through the wire.

And hence When a stronger horse-shoe magnet has used the strength of the magnetic field is high, and it will experience a greater force and hence will be more displaced.

Q. 2. c) In Activity 13.7, how do we think the displacement of rod AB will be affected if the length of the rod AB is increased?

Answer:

When a current-carrying wire is placed in the magnetic field, it experiences a force,

this force is proportional to the length of wire, the strength of the magnetic field and the current through the wire.

And hence When the length of the rod AB is increased, it will experience a greater force and hence will be more displaced.

Q.3 A positively-charged particle (alpha-particle) projected towards the west is deflected towards the north by a magnetic field. The direction of the magnetic field

(a) towards south

(b) towards east

(c) downward

(d) upward

Answer:

By Fleming's Left-hand rule,

1644211204144

Keeping the thumb, forefinger and middle finger in the mutually perpendicular directions. The middle finger represents the direction of the current (in the direction of motion of positive charge: towards the West), the thumb represents the force (towards the North), then the forefinger represents the direction of the field (upward)

The direction of the Magnetic field will be upward.

Hence, Option (d) is the correct option.

NCERT Solutions for Class 10 Science- Chapter 13 Magnetic Effects of Electric Current Topic 13.4

Q.1 State Fleming’s left-hand rule

Answer:

Fleming's Left-Hand Rule:

Whenever a current-carrying conductor is placed in a magnetic field, the conductor experiences a force which is perpendicular to both the magnetic field and the direction of the current.

in other words,

if the first three fingers(Thumb, forefinger and middle finger) of the left hand are held mutually at right angles to each other and if the forefinger indicates the direction of the original field, and if the middle finger indicates the direction of current flowing through the conductor, then the thumb indicates the direction of the force exerted on the conductor

Q.2 What is the principle of an electric motor?

Answer: When a current-carrying conductor is placed in a magnetic field, it experiences a force that is perpendicular to both the magnetic field and direction of current through the conductor. So, the force helps the conductor in performing the rotation. The electric motor uses this principle to rotate.

Q.3 What is the role of the split ring in an electric motor?

Answer: The split ring is also called commutator because it commutes (transfer) the current from outside of the motor to inside of the motor. It changes the direction of current after every half rotation so that the motor will continue to rotate in the same direction.

NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Topic 13.5

Q.1 Explain different ways to induce a current in a coil.

Answer: Whenever we move a magnet towards the coil, a current will be induced. Also when we move loop towards the magnet, a current will be induced.


NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current Topic 13.6

Q.1 State the principle of an electric generator.

Answer:

An electric generator works on the principle of electromagnetic induction. When the magnetic field around a conductor is changed, the generation of electric current happens in a circuit, this phenomenon is called electromagnetic induction. When we rotate a coil in a magnetic field a current is induced in the coil (the circuit of the coil must be closed to utilize the current). The direction of the induced current is given by Fleming's right-hand rule.

Q.2 Name some sources of direct current.

Answer- The DC current is the current which does not change the direction with time. The sources of DC current are DC battery and Dc generator.

Q.3 Which sources produce alternating current?

Answer- Alternating current is the current which alters the direction at some time interval. Some sources of this type of current are, AC generator and AC producing power plants.

Q. 4. Choose the correct option.

A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each

(a) two revolutions

(b) one revolution

(c) half revolution

(d) one-fourth revolution

Answer: The direction of the induced current changes once in each half revolution, since the direction of relative motion of coil and the magnetic field, is changing in every half cycle

Hence the correct option is (c).

NCERT Solutions for Class 10 Science- Chapter 13 Magnetic Effects of Electric Current Topic 13.7

Q.1 Name two safety measures commonly used in electric circuits and appliances.

Answer:

Two safety measures commonly used in electric circuits and appliances are

1) Use of Electric Fuse: we add an electric fuse in series with our circuit to protect our circuit in the events when the current through the circuit becomes extremely high. When the current is high fuse breaks and the circuit gets isolated from the supply.

2) Earthing to prevent shock: we connect a proper ground connection so that whenever there is any leakage current in any appliance, it directly gets transferred to the ground without giving a shock to the person using the appliance.

Q.2 An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain.

Answer: As given in the question, the maximum current which can pass through electric oven is 5 A. So let's find out how much current will pass through the device in given power ratings.

So for power, we have a relation

Power (P) = Voltage(V) X Current (I)

So putting given values, we get

2 kW = 220 v X Current (I)

\ Current(I)=\frac{2000}{220}A=\frac{100}{11}A=9.09A

As we can see the current flowing in the electric oven is 9.09 A which is greater than 5 A. this can be a dangerous situation. the insulation on the wire may melt and cause a short circuit problem. we use a fuse to protect us from this situation. a fuse is just a wire which melts and breaks the circuit in the case of overcurrent situation like above.

Q. 3. What precaution should be taken to avoid the overloading of domestic electric circuits?

Answer: Some precautions that should be taken to avoid the overloading of domestic electric circuits are:

1) we should not use too many appliances at the same time.

2) we should not connect too many appliances from a single socket.

3) we should use the fuse for protection when there is overload.

4) we should not connect the faulty appliances in the circuit.

5) Proper earthing should be there

NCERT Solutions for Class 10 Science- Chapter 13 Magnetic Effects of Electric Current Exercise

Q. 1 Which of the following correctly describes the magnetic field near a long straight wire?

(a) The field consists of straight lines perpendicular to the wire

(b) The field consists of straight lines parallel to the wire

(c) The field consists of radial lines originating from the wire.

(d) The field consists of concentric circles centred on the wire.

Answer:

The magnetic field lines around any current-carrying wire are a concentric circle in nature, the centre of whose circle lies in the wire.

Hence option (d) is correct.

Q. 2. The phenomenon of electromagnetic induction is

(a) the process of charging a body.

(b) the process of generating a magnetic field due to a current passing through a coil.

(c) producing induced current in a coil due to relative motion between a magnet and the coil.

(d) the process of rotating a coil of an electric motor

Answer:

Electromagnetic induction is the phenomenon of producing induced current in a coil by changing the magnetic field.

Hence, the phenomenon of electromagnetic induction is producing induced current in a coil due to relative motion between a magnet and the coil.

Hence option (c) is the correct option.

Q. 3. The device used for producing electric current is called a

(a) generator.

(b) galvanometer.

(c) ammeter.

(d) motor.

Answer:

We produce current in the generator so, The device used for producing electric current is called a Generator. it converts mechanical energy into electrical energy.

Q. 4. The essential difference between an AC generator and a DC generator is that

(a) AC generator has an electromagnet while a DC generator has a permanent magnet.

(b) DC generator will generate a higher voltage.

(c) AC generator will generate a higher voltage.

(d) AC generator has slip rings while the DC generator has a commutator.

Answer:

In a DC generator, we have two split rings also known as a commutator to prevent the change in direction of the current. while in AC, we want the direction to be changed so we use normal slip rings to transfer current from inside of the generator to outside of the generator. This is the main difference between the AC generator and the DC generator.

Hence, option (d) is the correct option.

Q. 5. At the time of short circuit, the current in the circuit

(a) reduces substantially.

(b) does not change.

(c) increases heavily.

(d) vary continuously.

Answer:

At the time of the short circuit, the current in the circuit increases abruptly.

Hence option (c) is the correct option.

Q. 6. State whether the following statements are true or false.

(a) An electric motor converts mechanical energy into electrical energy.

(b) An electric generator works on the principle of electromagnetic induction.

(c) The field at the centre of a long circular coil carrying current will be parallel straight lines.

(d) A wire with a green insulation is usually the live wire of an electric supply.

Answer:

a) False, because an electric motor converts electrical energy into mechanical energy. 26126

b) True, as electric generator uses the principle of electromagnetic induction for producing current.

c)True, as the long circular coil is equivalent to a solenoid. and hence the field at the centre of a long circular coil carrying current will be parallel straight lines.

d) False, As the live wire in domestic circuits is usually red in colour and ground wire is in green colour, NORMALLY.

Q. 7. List two methods of producing magnetic fields.

Answer:

The two methods of producing the magnetic field are:

1) Passing the current through any conductor.

2) The permanent magnet also produces the magnetic field around it.

Q. 8. How does a solenoid behave like a magnet? Can you determine the north and south poles of a current-carrying solenoid with the help of a bar magnet? Explain.

Answer:

A solenoid is the long coil of a circular loop of any conductor. the magnetic field lines inside the solenoid are parallel to each other just like in permanent magnet.

1644211316785

The magnetic field lines outside the solenoid are also similar to that of the permanent magnet. and hence we can assume the end from where the field lines are emerging as North pole and the en where field lines are merging as South pole.

When we bring a North pole of a bar magnet towards one side of the solenoid and if it repels the side of solenoid is North and if it attracts then the side of solenoid is South. The polarity of another side will be opposite.

Q. 9. When is the force experienced by a current-carrying conductor placed in a magnetic field largest?

Answer:

In the current-carrying conductor, the force experienced will be maximum when the direction of current in the conductor is perpendicular to the magnetic field.

Q. 10. Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field to your right side. What is the direction of magnetic field?

Answer:

Suppose you are leaning towards the back wall then the electron beam is moving away from your eyes which means the direction of current is towards you (direction of current is taken opposite to the flow of electrons) and the deflection is to the right. Then by Fleming's left-hand rule, the field is in the downward direction.

1644211339135

Q. 11. Draw a labeled diagram of an electric motor. Explain its principle and working. What is the function of a split ring in an electric motor?

Answer:

A simple Electric Motor :

1644211356724

An electric motor converts electrical energy into mechanical energy.

Principle: It works on the principle of the magnetic effect of the current. when a current-carrying conductor is placed in the magnetic field, it experiences a force and starts moving.

Working :

An electric motor, as shown is, consists of a rectangular coil ABCD of insulated copper wire. The coil is placed between the two poles of a magnetic field such that the arm AB and CD are perpendicular to the direction of the magnetic field. The ends of the coil are connected to the two halves P and Q of a split ring. The inner sides of these halves are insulated and attached to an axle. The external conducting edges of P and Q touch two conducting stationary brushes X and Y, respectively.

Current in the coil ABCD enters from the source battery through conducting brush X and flows back to the battery through brush Y. Notice that the current in arm AB of the coil flows from A to B. In arm CD it flows from C to D, that is, opposite to the direction of current through arm AB. On applying Fleming’s left-hand rule for the direction of the force on a current-carrying conductor in a magnetic field (see Fig. 13.13). We find that the force acting on arm AB pushes it downwards while the force acting on arm CD pushes it upwards. Thus the coil and the axle O mounted free to turn about an axis, rotate anti-clockwise. At half rotation, Q makes contact with the brush X and P with brush Y. Therefore the current in the coil gets reversed and flows along the path DCBA.

A device that reverses the direction of flow of current through a circuit is called a commutator. In electric motors, the split ring acts as a commutator. The reversal of current also reverses the direction of force acting on the two arms AB and CD. Thus the arm AB of the coil that was earlier pushed down is now pushed up and the arm CD previously pushed up is now pushed down. Therefore the coil and the axle rotate half a turn more in the same direction. The reversing of the current is repeated at each half rotation, giving rise to a continuous rotation of the coil and to the axle.

The split ring helps in reversing the direction of current in the armature so that it rotates continuously in one direction.

Q. 12. Name some devices in which electric motors are used.

Answer: - We use electric motors in many devices like fan, pumps, grinders, washing machine, vehicles and many more.

Q. 13. A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is

(i) pushed into the coil

(ii) withdrawn from inside the coil

(iii) held stationary inside the coil?

Answer:

(i) When a bar magnet is pushed into the coil, there is a relative motion between the magnetic field and the coil hence a current will get induced which will deflect the galvanometer. when the bar magnet is inside the coil and not moving, the flux won't change so the galvanometer won't show deflection. And hence Overall galvanometer will deflect momentarily.

(ii) When the bar magnet is being removed, the flux through the coil will change which results in inducing the current and deflecting the galvanometer. after bar magnet is completely removed and is at a sufficiently large distance for its magnetic field to affect the coil, there won't be any flux change in the coil and hence no current will be induced. and hence overall the galvanometer will deflect momentarily.

(iii) If a bar magnet is held stationary inside the coil, the flux through the coil is not changing with time and hence there won't be any induced current. therefore the galvanometer won't show any deflection.

Q. 14. Two circular coils A and B are placed closed to each other. If the current in the coil A is changed, will some current be induced in the coil B? Give reason.

Answer- When the two circular coils A and B are placed closed to each other and current in the coil A is changed, the magnetic field coil A is producing will change which leads to inducing the current in coil B.

Q. 15. State the rule to determine the direction of a

(i) magnetic field produced around a straight a conductor-carrying current,

Answer- To find the magnetic field produced around a straight conductor carrying current, we use Maxwell's Right-Hand thumb rule.

According to this rule, imagine that you are holding a current-carrying wire in your right hand so that the thumb points in the direction of the current, then the direction in which the fingers wrap the wire will represent the direction of magnetic lines of force.

Q. 15. State the rule to determine the direction of a

(ii) force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it,

Answer: To find the force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it, we use Fleming's, Left-Hand Rule.

it states that if the first three fingers of the left hand are held mutually at right angles to each other and if the index finger indicates the direction of original field, and if the middle finger indicates the direction of current flowing through the conductor, then the thumb indicates the direction of force exerted on the conductor.

Q. 15. State the rule to determine the direction of a

(iii) current induced in a coil due to its rotation in a magnetic field.

Answer: To find the current induced in a coil due to its rotation in a magnetic field, we use Fleming's Right-hand rule.

it states that the direction of induced current (indicated by Middle Finger) is perpendicular to both the direction of the magnetic field from North pole to South pole (indicated by Index Finger) and the direction of movement or motion (indicated by Thumb).

Q. 16. Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?

Answer: The Electric Generator:

1644211398473

An electric generator converts mechanical energy into electrical energy.

Principle: It works on the principle of electromagnetic induction. whenever there is a change in the flux through any coil, there would be the induction of current.

Working:

An electric generator, as shown is consists of a rotating rectangular coil ABCD placed between the poles of a permanent magnet. The two ends of this coil are connected to the two rings R1 and R2. The inner side of the ring is made insulated. The two conducting stationary brushes B1 and B2 are kept pressed separately on the rings R1 and R2, respectively. The two rings R1 and R2 are internally attached to an axle. The axle may be mechanically rotated from outside to rotate the coil inside the magnetic field. Outer ends of the two brushes are connected to the galvanometer to show the direction of flow of current in the external circuit. When the axle attached to the two rings is rotated such that the arm AB moves up (and the arm CD moves down) in the magnetic field produced by the permanent magnet. Let us say the coil ABCD is rotated clockwise in the arrangement shown. By applying Fleming’s right-hand rule, the induced currents are set up in these arms along the directions AB and CD.

Thus an induced current flows in the direction ABCD. This means that the current in the external circuit flows from B2 to B1. After half a rotation, arm CD starts moving up and AB moving down. As a result, the directions of the induced currents in both the arms change, giving rise to the net induced current in the direction DCBA. The current in the external circuit now flows from B1 to B2. Thus after every half rotation the polarity of the current in the respective arms changes. Such a current, which changes direction periodically, is called alternating current (AC). This device is called an AC generator.

To get a direct current (DC, which does not change its direction with time), a split-ring type commutator must be used. With this arrangement, one brush is at all times in contact with the arm moving up in the field, while the other is in contact with the arm moving down

The function of Brushes: Brushes helps in transferring the current from inside the generator to the external circuit.

Q. 17. When does an electric short circuit occur?

Answer: The short circuit happens when the positive voltage point of the wire comes in contact with the negative voltage point in the wire. As the resistance of wires is very small a very high current flows through the circuit which can potentially damage the circuit. this phenomenon is called a short circuit.

When neutral wire and live wire comes in contact, short circuit happens.

Also, when we connect too many appliances in a single circuit, the resistance of the circuit can get very small up to the point of the possibility of having a short circuit.

Q. 18. What is the function of an earth wire? Why is it necessary to earth metallic appliances?

Answer: The main function of the earth wire is to prevent the live wire from overloading and absorbs the excess electrons & flows to beneath the ground. It is necessary because it prevents electrical appliances from getting damaged and absorbs the excess electricity from appliances.

in other words, whenever we have a connection to the ground the leakage current or the overload current can be transferred to the ground directly and the events of shock can be prevented in which the current passes through the body of the person touching the metallic appliances.

NCERT Solutions for Class 10 Science Chapter 13 - Types of Questions Asked

Before proceeding to the exam, it is crucial for students to be familiar with the types of questions that may be asked in the class 10 science ch 13 question answer. Commonly found question types in the exam include:

  • Very short answer type

  • Short answer type

  • Long answer type

  • Practical based questions

NCERT Class 10 Science Solutions Chapter 13 - Weightage in Board Exams

In the Class 10 board exam, the chapter "Magnetic Effects of Electric Current" holds considerable importance with a weightage of 10 marks, accounting for around 15% of the total marks in the Science exam. This topic is significant as questions related to it can be found in both the objective and subjective sections of the exam. Students must thoroughly prepare for this chapter to perform well and secure good marks in the board examination. Studying the NCERT Solutions for Class 10 Science Chapter 13 can prove beneficial in comprehending the concepts and answering questions effectively.

More About NCERT Class 10 Science Chapter 13 Magnetic Effects of Electric Current

The NCERT Class 10 Science solutions chapter 13 provides detailed explanations for each topic-wise question and exercise questions as well. Students are advised to go through the magnetic effects of electric current solutions to score good marks in the Board examination.

Topics to study in ch 13 science class 10 Magnetic Effects of Electric Current

  • Magnetic Field and Field Lines

  • Magnetic Field Due to a Current-Carrying Conductor

  • Force on a Current-Carrying Conductor in a Magnetic Field

  • Electric Motor

  • Electromagnetic Induction

  • Electric Generator

  • Domestic Electric Circuits

Apart from this, class 10 science ch 13 NCERT solutions covers several intriguing experiments and topics, including:

  • Two questions about the properties of magnets (one short, one multiple choice)
  • One multiple-choice question about the working of the magnetic effect
  • One short question about the Clock Face Rule
  • One detailed question about Fleming's left-hand rule
  • One comprehensive question about Maxwell's Right Hand Thumb Rule and its practical application

Key Features of NCERT Solutions for Class 10 Science Chapter 13 – Magnetic Effects of Electric Current:

  1. Expertly Crafted: All magnetic effects of electric current class 10 solutions are provided by subject matter experts, ensuring accuracy and enhancing your understanding of the chapter.

  2. Comprehensive Understanding: The class 10 science ch 13 ncert solutions cover each concept in detail, helping you grasp the topics effectively.

  3. Easy Language: The language used in the ch 13 science class 10 question answer is simple and easy to comprehend, making it accessible to all students.

  4. Conceptual Clarity: The NCERT solutions for class 10 science chapter 13 will facilitate a clear understanding of the concepts discussed in the chapter.

  5. Free and Accessible: Magnetic effect of electric current class 10 ncert solutions are readily available and free of cost, allowing students to access them conveniently.

  6. PDF Download: NCERT Solutions for Class 10 Science Chapter 13 PDF allows students to access them anytime and anywhere without any internet issues. This convenient format enables students to study and revise offline, providing flexibility and accessibility to the solutions on various devices.

Also, Check NCERT Books and NCERT Syllabus here:

Chapter-wise NCERT Solutions for Class 10 Science

NCERT Science Exemplar Solutions Class 10 - Chapter Wise

At Careers360, students can access NCERT Solutions for all classes, from Class 6 to 12, covering all subjects. These solutions are carefully crafted by expert subject tutors to align with the latest CBSE syllabus and guidelines. With our comprehensive NCERT Solutions, students can improve their understanding, excel in exams, and achieve academic excellence at every level of their education.

Frequently Asked Questions (FAQs)

1. Whether magnetic effects of electric current is useful for higher studies?

Yes, this chapter is useful for higher studies in the science field. If you are choosing Science in Class 12, then there are chapters based on the concepts studied in NCERT  Class 10 Science Chapter 13 Magnetic Effects of Electric Current.

2. Will the questions for CBSE board be directly asked from the NCERT textbook?

Yes students may get some of the questions on the NCERT only. Other questions will be based on NCERT Syllabus shared by the CBSE board. Students has to go through the previous year paper questions to get idea of what type of questions are asked in the CBSE board exams.

3. What are the important topics in this chapter?

Magnetic Field, Force on a Current-Carrying Conductor, Electric Motor, Electromagnetic Induction, Electric Generator, Right Hand Thumb Rule, Flemings Left and Right Hand Rule etc are some of the important topics.

Articles

Upcoming School Exams

Application Date:11 November,2024 - 10 January,2025

Application Date:11 November,2024 - 10 January,2025

Admit Card Date:13 December,2024 - 06 January,2025

Late Fee Application Date:13 December,2024 - 22 December,2024

View All School Exams

Explore Top Universities Across Globe

University of Essex, Colchester
 Wivenhoe Park Colchester CO4 3SQ
University College London, London
 Gower Street, London, WC1E 6BT
The University of Edinburgh, Edinburgh
 Old College, South Bridge, Edinburgh, Post Code EH8 9YL
University of Bristol, Bristol
 Beacon House, Queens Road, Bristol, BS8 1QU
University of Nottingham, Nottingham
 University Park, Nottingham NG7 2RD

Questions related to CBSE Class 10th

Have a question related to CBSE Class 10th ?

If you're looking for directions or steps to reach Sadhu Ashram on Ramgart Road in Aligarh, here’s how you can get there:

Steps to Reach Sadhu Ashram, Ramgart Road, Aligarh:

  1. Starting Point:

    • Determine your starting point in Aligarh or the nearby area.
  2. Use Google Maps:

    • Open Google Maps on your phone or computer.
    • Enter "Sadhu Ashram, Ramgart Road, Aligarh" as your destination.
    • Follow the navigation instructions provided by Google Maps.
  3. By Local Transport:

    • Auto-rickshaw/Taxi: Hire an auto-rickshaw or taxi and inform the driver about your destination. Most local drivers should be familiar with Sadhu Ashram.
    • Bus: Check if there are any local buses that operate on Ramgart Road. Ask the bus conductor if the bus stops near Sadhu Ashram.
  4. Landmarks to Look For:

    • As you approach Ramgart Road, look for local landmarks that might help you confirm you’re on the right path, such as known shops, temples, or schools nearby.
  5. Ask for Directions:

    • If you're unsure, ask locals for directions to Sadhu Ashram on Ramgart Road. It's a known location in the area.
  6. Final Destination:

    • Once you reach Ramgart Road, Sadhu Ashram should be easy to spot. Look for any signage or ask nearby people to guide you to the exact location.

If you need detailed directions from a specific location or more information about Sadhu Ashram, feel free to ask

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.

View All

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

Back to top