Electromagnetism – Online MCQs – Physics 10th

1. In a transformer, the primary coil is connected to:

2. A magnetic field:

3. As per Michael Faraday, the force is increased if the:

4. Fleming’s left-hand rule is used to find:

5. An AC generator is an electric generator that converts:

6. A current carrying coil kept in a magnetic field, experiences a torque, which is the:

7. Which statement is true about the magnetic poles?

8. The magnetic field around a magnetic moving charge is a:

9. The production of induced current in one coil due to the current in the neighbouring coil is called:

10. Which part of a D.C motor reverses the direction of current through the coil every half-cycle?

11. We apply Lenz’s law to find out the direction of:

12. If the secondary voltage exceeds the primary voltage, the transformer is called a:

13. Transformers are used to:

14. A current carrying coil kept in a magnetic field experiences a torque which is maximum when the:

15. If we increase the number of loops, the turning effect of a coil would be:

16. The magnetic force experienced by a charged particle moving in a magnetic field will be minimum when it moves:

17. In the MKS system, the unit of magnetic flux density is:

18. If we had a wire with the right hand such that the thumb pointed in the direction of the current, then the curling fingers of the hand will point the:

19. Magnetic effect of current is called:

20. When the plane of the coil is parallel to magnetic field, the induced e.m.f is: