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In a uniform magnetic field B a wire in ...

In a uniform magnetic field B a wire in the form of a semicircle of radius r rotates obout the diameter of the circle with angular frequency `omega`. The axis of rotation is perpendicular to the field. If the total resistance of the circuit is R, the mean pwer generated per period of rotation is

A

`(Bpir^(2)omega)/(2R)`

B

`((Bpi^(2)omega)^(2))/(8R)`

C

`((Bpi omega)^(2))/(2R)`

D

`((Bpiromega)^(2))/(8R)`

Text Solution

Verified by Experts

The correct Answer is:
B
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