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Related Questions

• The current flowing in a coil of self inductance 0.4 mH is increased by 250 mA in 0.1 sec. The e.m.f. induced will be

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• The core of a transformer is laminated so that

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• An e.m.f. of 12 volts is induced in a given coil when the current in it changes at the rate of 48 amperes per minute. The self inductance of the coil is

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• In a coil of area $10\;c{m^2}$ and 10 turns with a magnetic field directed perpendicular to the plane and is changing at the rate of ${10^8}$gauss/second. The resistance of the coil is 20 ohm. The current in the coil will be

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• A varying current at the rate of 3 A/s in a coil generates an e.m.f. of 8 mV in a nearby coil. The mutual inductance of the two coils is

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