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Related Questions

• 5 cm long solenoid having 10 ohm resistance and 5 mH inductance is joined to a 10 volt battery. At steady state the current through the solenoid in ampere will be

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• The magnetic flux linked with a coil, in webers, is given by the equations $\varphi = 3{t^2} + 4t + 9$. Then the magnitude of induced e.m.f. at t = 2 second will be

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• A coil of area 80 square cm and 50 turns is rotating with 2000 revolutions per minute about an axis perpendicular to a magnetic field of 0.05 Tesla. The maximum value of the e.m.f. developed in it is

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• The coils of a step down transformer have 500 and 5000 turns. In the primary coil an ac of 4 ampere at 2200 volts is sent. The value of the current and potential difference in the secondary coil will be

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• 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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