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Related Questions

• The coil of area 0.1 m2 has 500 turns. After placing the coil in a magnetic field of strength $4 \times {10^{ - 4}}Wb/{m^2}$, if rotated through 90o in 0.1 s, the average emf induced in the coil is

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• The north pole of a bar magnet is moved swiftly downward towards a closed coil and then second time it is raised upwards slowly. The magnitude and direction of the induced currents in the two cases will be of... First case-Second case

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• A transformer has turn ratio 100/1. If secondary coil has 4 amp current then current in primary coil is

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• Which of the following is constructed on the principle of electromagnetic induction

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• The average e.m.f. induced in a coil in which the current changes from 2 ampere to 4 ampere in 0.05 second is 8 volt. What is the self inductance of the coil ?

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