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Related Questions

• A coil having an inductance of 0.5 H carries a current which is uniformly varying from zero to 10 ampere in 2 second. The e.m.f. (in volts) generated in the coil is

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• In an induction coil, the secondary e.m.f. is

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• A coil has $1,000$ turns and $500 cm^2$ as its area. The plane of the coil is placed at right angles to a magnetic induction field of $2 \times {10^{ - 5}}\,Wb/{m^2}$. The coil is rotated through ${180^o}$ in 0.2 seconds. The average e.m.f. induced in the coil, in milli-volts, is

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• A rectangular coil of 300 turns has an average area of average area of $25\;cm \times 10\;cm.$ The coil rotates with a speed of 50 cps in a uniform magnetic field of strength $4 \times {10^{ - 2}}T$ about an axis perpendicular of the field. The peak value of the induced e.m.f. is (in volt)

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• Use of eddy currents is done in the following except

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