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A metal rod of length L is placed normal...

A metal rod of length L is placed normal to a magnetic field and rotated through one end of rod in circular path with frequency f. The potential difference between it ends will be-

A

`piL^2 Bf`

B

`BL//f`

C

`piL^2 B//f`

D

`fBL`

Text Solution

Verified by Experts

The correct Answer is:
A
`V = 1/2 xx B xx 2 pi f xx L^2`
`= pi L^2 Bf`
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