Electromagnetism – Online MCQs – Physics 10th

1. The direction of induced e.m.f. in a circuit is in accordance with the conservation of:

2. When current flowing upward direction it indicated the:

3. A D.C motor converts:

4. A magnetic field:

5. An ideal transformer dissipates by itself:

6. 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:

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

8. A conductor of length L has current I passing through it when it is placed parallel to a magnetic field. The force experienced by the conductor will be:

9. What is the direction of the magnetic field lines inside a bar magnet?

10. Which statement is true about the magnetic poles?

11. The electric power delivered to the secondary circuit is equal to the power supplied to the primary circuit is a/an:

12. At the generating station, the AC voltage is:

13. The current-carrying loop inside the magnetic field rotate due to the:

14. If the secondary voltage is lower than the primary voltage, the transformer is called a:

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

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

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

18. The presence of a magnetic field can be detected by a:

19. Magnetic effect of current is called:

20. At the generating station, the AC voltage is: