Electromagnetic Induction Quiz Questions and Answers - 1

Question: 1

The law which states that the line integral of the magnetic field around a closed curve is equal to the free current through a surface, is

(A) Ampere's law

(B) Coulomb’s law

(C) Gauss's law

(D) Tellegen's theorem

Ans: A

Ampere's law

Question: 2

A quantitative relation between induced emf and rate of change of flux linkage is known as

(A) Faraday's law

(B) Lenz's law

(C) Maxwell’s law

(D) Stoke's law

Ans: A

Faraday's law

Question: 3

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

(A) Laminated iron cored

(B) Wooden cored

(C) Iron cored

(D) Air-cored

Ans: D


Question: 4

Iron loss is known as

(A) Hysteresis loss

(B) Eddy current loss

(C) Both a and b

(D) None of the above

Ans: C

Both a and b

Question: 5

In the magnetic core the electromotive forces (emf) induced in accordance with Faraday's law of electromagnetic induction give rise to

(A) Eddy current

(B) Excitation current

(C) Armature current

(D) Field current

Ans: A

Eddy current

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