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Physics-

General

Easy

Question

According to Faraday’s law of electromagnetic induction

The direction of induced current is such that it opposes the cause producing it
The magnitude of induced e.m.f. produced in a coil is directly proportional to the rate of change of magnate flux
The direction of induced e.m.f. is such that it opposes the cause producing it
None of the above

The correct answer is: The magnitude of induced e.m.f. produced in a coil is directly proportional to the rate of change of magnate flux

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A metal conductor of length 1 m rotates vertically about one of its ends at angular velocity 5 rad $blank s to the power of negative 1 end exponent$ . If the horizontal component of earth’s magnetic field is $0.2 cross times 10 to the power of negative 4 end exponent blank T comma$ then the emf developed between the two ends of the conductor is

Physics-General

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