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Chapter 1 ELECTROMAGNETIC INDUCTION MCQs

1. . The EMF is _________ proportional to the rate of change of flux.

(A) inversely


(B) less than


(C) equal


(D) directly




2. . Faraday introduced the laws of _____.

(A) Electromagnetic


(B) Gravitation


(C) Inertia


(D) Motion




3. . Faraday laid down _________ laws of electromagnetic induction.

(A) 2


(B) 3


(C) 4


(D) 6




4. . Lenz’s law states that the direction of induced EMF is such that it ________ the change producing it.

(A) Does not affect


(B) Follows


(C) Reinforces


(D) Opposes




5. . Fleming’s right-hand rule is used to find the ________ direction.

(A) Induced current


(B) Magnetic field


(C) Motion of conductor


(D) None of the above




6. . Self-inductance of a coil is defined as the property by which a change of current in the coil produces ________.

(A) Voltage in another coil


(B) EMF in the same coil


(C) Magnetic flux


(D) Current in the same coil




7. . Mutual inductance occurs between ________.

(A) Two different coils


(B) A coil and its own current


(C) Conductor and magnetic field


(D) None of the above




8. . Induced EMF is equal to the rate of change of flux linkage according to ________.

(A) Lenz’s law


(B) Faraday’s law


(C) Fleming’s rule


(D) Ampere’s law




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