MHT CET 2024 Physics question
A circular coil of resistance R, area A, number turns 'N' is rotated about its vertical diameter with angular speed '' in uniform magnetic field of magnitude 'B'. the average power dissipated in a complete cycle is
Answer: (A)
Solution
The induced emf in a coil rotating in a uniform field is , with peak value . The instantaneous power is , and the average of over a
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