Questions
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
detailed solution
Correct option is C
e=NBAω;ω=2πf=2π×200060∴e=50×0.05×80×10−4×2π×200060=4π3Talk to our academic expert!
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A square wire loop, of side a has a long straight wire carrying a constant current i that passes through the centre of the loop and perpendicular to its plane as shown in Fig.
The current induced in the square loop is
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