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Related Questions

• A coil has an area of 0.05 m2 and it has 800 turns. It is placed perpendicularly in a magnetic field of strength $4 \times {10^{ - 5}}\,Wb/{m^2},$ it is rotated through ${90^o}$ in 0.1 sec. The average e.m.f. induced in the coil is

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• A solenoid of length l metre has self-inductance L henry. If number of turns are doubled, its self inductance [MP PMT 2001]

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• Armature current in dc motor will be maximum when

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• A coil having 500 square loops each of side 10 cm is placed normal to a magnetic flux which increases at the rate of 1.0 tesla/second. The induced e.m.f. in volts is

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• If the current is halved in a coil, then the energy stored is how much times the previous value

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