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Two identical conducting rings A & B of ...

Two identical conducting rings A & B of radius R are in pure rolling over a horizontal conducting plane with same speed (of centre of mass) `upsilon` but in opposite direction. A constant magnetic field B is present pointing inside the plane of paper. Then the potential difference between the highest points of the two rings, is :

A

zero

B

2 Bvr

C

4Bvr

D

none of these

Text Solution

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The correct Answer is:
C
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