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A conducting rod of length l is hinged a...

A conducting rod of length `l` is hinged at point `O`. It is free to rotate in vertical plane. There exists a uniform magnetic field `vecB` in horizontal direction. The rod is released from position shown in the figure. Potential difference between two ends of the rod is proportional to

A

`l^(3//2)`

B

`l^(2)`

C

`sin theta`

D

`(sin theta)^(1//2)`

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The correct Answer is:
B, C
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