Electrical Engineering Mcq on Electric Circuits.

Electrical Engineering

Mcq on Electric Circuits

For all upcoming exam part 2

1.Which property is used to oppose the flow of current ?

 Resistance

2.There is a ________ between two nodes of signal flow graph

Branch

3.In a series resonant circuit impedance is

minimum.

4.What is form factor?

R.M.S. value / Average value.

5. What is the frequency of domestic power in India?

50 Hz

6. What is apparent power in AC operation?

Product of rms voltage and rms current

7. An electrolytic capacitor can be used for

DC only.

8. For making a capacitor it is better to select a dielectric having

high permittivity.

9. Sulphation in a lead acid battery occurs due to

incomplete charging.

10. Magnetism of a magnet can be destroyed by

 heating.

 hammering.

 by inductive action of another magnet.

 by all above methods.

11. Atoms with fewer than 4 valence electrons are

conductor.

12. Atoms have no electric charge because they

have an equal number of electrons and protons.

13. Ampere second is the unit of

charge.

14. A unit tube of flux is known as ____________________ tube.

Faraday

15. An electric field line and an equipotential surface are

always perpendicular.

16. Ampere second is the unit of

 charge.

17. A unit tube of flux is known as ____________________ tube.

Faraday.

18. An electric field line and an equipotential surface are

always perpendicular.

19. Electric flux is proportional to

potential difference between electrodes.

20. An electric field can deflect

alpha particles

21. Which of following is the unit of magnetic flux density?

 Tesla.

22. Under resonance condition the power factor of a system is

Unity.

23. Pure metal generally have

high conductivity and large temperature coefficient.

24. __________has positive temperature coefficient .

Gold.

25. Resistance of which material does not change with change in temperature?

Metal alloys constantan and manganin.

26. The unit of capacitance is

Farad.

27. A capacitor

passes AC but blocks DC.

28. To obtain high efficiency, network is designed with

 High Q factor

29. To obtain wide bandwidth, network is designed with

Low Q factor.

30. the electrical resistance of human body is around

1000 ohms.

31. Internal heating of a capacitor is usually attributed to

leakage resistance.

32. The inverse of capacitance is called

elastance.

33. An electrolytic capacitor can be used for

DC only.

34. Paper condenser is

usually fixed value.


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