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sir if we rotate a ring magnet x metert away from a solenoid having n turns of radius r with a speed of v rotation per sec then what will be the current induced in solenoid?

sir if we rotate a ring magnet x metert away from a solenoid having n turns of radius r with a speed of v rotation per sec then what will be the current induced in solenoid?

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1 Answers

SAGAR SINGH - IIT DELHI
879 Points
11 years ago

Dear student,

      

where the number of loops enclose by the path is (N/L)x. Only the upper portion of the path contributed to the sum because the magnetic field is zero outside, and because the vertical paths are perpendicular to the magnetic field. By dividing x out of both sides of the last equation, one finds:

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