Electromagnetic Induction MCQ Questions & Answers | Electrical Engineering

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1.
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

A. Self-inductance

B. Mutual inductance

C. Series aiding inductance

D. Capacitance

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2.
Which circuit element(s) will oppose the change in circuit current?

A. Resistance only

B. Inductance only

C. Capacitance only

D. Inductance and capacitance

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3.
Which of the following circuit elements will oppose the change in circuit current?

A. Capacitance

B. Inductance

C. Resistance

D. All of the above

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4.
In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be

A. 2.0

B. 1.0

C. 0.5

D. Zero

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5.
Two 300 uH coils in series without mutual coupling have a total inductance of

A. 300 uH

B. 600 uH

C. 150 uH

D. 75 uH

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