1000+ Electromagnetic Induction MCQ Questions and Answers - 2

Question: 6

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

(A) rate of change of flux linkages

(B) amount of flux linkages

(C) amount of flux cut

(D) flux density of the magnetic field

Question: 7

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

(A) moves parallel to the direction of the magnetic field

(B) cuts magnetic flux

(C) lies perpendicular to the magnetic flux

(D) lies in a magnetic field

Question: 8

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

(A) resistance

(B) capacitance

(C) inductance

(D) all of the above

Question: 9

Two coils have inductances of 8 mH and 18 mH and a coefficient of coupling of 0.5. If the two coils are connected in series aiding, the total inductance will be

(A) 32 mH

(B) 38 mH

(C) 40 mH

(D) 42 mH

Question: 10

The direction of induced e.m.f. can be found by

(A) Kirchhoff’s voltage law

(B) Fleming’s right hand rule

(C) Lenz’s law

(D) Laplace’s law