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Related Questions

• A 10 metre wire kept in east-west falling with velocity $5 m/sec$ perpendicular to the field $0.3 imes {10^{ - 4}}Wb/{m^2}$. The induced e.m.f. across the terminal will be

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• Two coils of self inductance ${L_1}$ and ${L_2}$ are placed closer to each other so that total flux in one coil is completely linked with other. If $M$ is mutual inductance between them, then

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• A coil and a bulb are connected in series with a dc source, a soft iron core is then inserted in the coil. Then

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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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• In a step-up transformer the turn ratio is 1:10. A resistance of 200 ohm connected across the secondary is drawing a current of 0.5 A. What is the primary voltage and current

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