By | June 11, 2020
Created by Surendra

Electromagnetic Induction Quiz in English Set 1

All Important Question Answers for Electrician Related Exams

1 / 20

The law that the induced e.m.f. and current always oppose the cause producing them is due to

2 / 20

Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be

3 / 20

The magnitude of the induced e.m.f. in a conductor depends on the

4 / 20

The inductance of a coil will increase under all the following conditions except

5 / 20

The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as

6 / 20

As per Faraday’s laws of electromagnetic induction an e.m.f. is induced in a conductor whenever it

7 / 20

In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will

8 / 20

Which of the following circuit element stores energy in the electromagnetic field ?

9 / 20

A crack in the magnetic path of an inductor will result in

10 / 20

Mutually inductance between two magnetically-coupled coils depends on

11 / 20

Air-core coils are practically free from

12 / 20

A coil is wound on iron core which carries current I. The self-induced voltage in the coil is not affected by

13 / 20

In case of an inductance current is proportional to

14 / 20

Higher the self-inductance of a coil

15 / 20

Which of the following is not a unit of inductance ?

16 / 20

Which circuit element(s) will oppose the change in circuit current ?

17 / 20

A laminated iron core has reduced eddy-current losses because

18 / 20

Which of the following circuit elements will oppose the change in circuit current ?

19 / 20

Which of the following inductor will have the least eddy current losses ?

20 / 20

An open coil has

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