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Two conducting rings of radii r and 2r m...

Two conducting rings of radii `r` and `2r` move in apposite directions with velocities `2 upsilon` and `upsilon` respectively on a conducting surface `S`. There is a uniform magnetic field of magnitude `B` perpendicular to the plane of the rings. The potential difference between the highest points of the two rings is

A

zero

B

`2rvB`

C

`4rvB`

D

`8rvB`

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The correct Answer is:
D
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