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
Air-cored
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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