ICSE 10 Electromagnetism Predicted Questions 2025

1

Demonstrate the Magnetic effect of electric current with the help of Hans Oersted's experiment.

2

Mention the characteristics of the magnetic field produced around the current-carrying straight conductor. What will be the effect when the conductor is bent in the form of a coil (Solenoid)? Explain with the help of a diagram.

3

Differentiate between Electromagnet and Permanent Magnet. Draw a diagram and describe the factors affecting their strength.

4

Differentiate between current-carrying Solenoid and Bar Magnet.

5

Explain the Clock Rule for finding the polarity at the end of a coil

6

Give examples of electrical devices that work on the Magnetic Effect of Electric Current. E.g. Electric Bell.

7

Explain the right-hand hand-thumb rule for finding the direction of the Magnetic Field around a current-carrying conductor.

8

Explain why the armature of an electric bell is made of soft iron and not steel. Draw a labelled diagram of an electric bell with its electrical connections.

9

Explain the effect (force) on a current-carrying conductor present in a magnetic field with the help of an experiment.

10

Explain Fleming's Left Hand Rule to find the direction of force on a current-carrying conductor placed in a magnetic field.

11

Explain the factors affecting the magnitude of the Lorentz Force.

12

The SI unit of the magnetic field is N/Am. What are its other units?

13

Draw a simple diagram for the DC motor and give its principles.

14

What are the functions of different parts used in a DC motor?

15

Give the Application of a DC motor which converts Electrical energy into Mechanical.

16

Mention the factors affecting the speed of rotation of the coil in the motor.

17

What do you mean by a radial field produced due to the insertion of a soft iron core?

18

Explain the concept of Magnetic Flux and its change.

19

State the principle of AC generator.

20

Explain Faraday's Laws of Electromagnetic Induction.

21

Explain Fleming's Right-hand rule and Lenz Law to find out the direction of induced current.

22

Why Induced EMF opposes the change in the magnetic flux?

23

Draw a diagram of the AC generator and explain the functions of its different parts.

24

Differentiate between AC and DC  and how the magnetic field changes around them.

25

What do you mean by the transformer? Give its principle and explanation along with diagrams of Step-up, as well as Step-down transformers.

26

Explain different parts of the Transformer and their functions.

27

A step-up transformer is given a d.c. Input of 100 V. What is the output voltage?

28

Why do birds fly off a high-tension wire when the current is switched ON?

29

Mention the factors affecting the Magnitude of induced EMF in an AC generator.

30

Draw the magnetic field lines around a straight current-carrying wire. How does the strength of the magnetic field vary with the distance from the wire?