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NEET Exam Model Paper 11

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Question : 27

Total: 180

Two conducting rings P and Q of radii r and 2r rotate uniformly in opposite directions with centre of mass velocities 2v and v 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

zero
4 Bvr
8 Bvr
16 Bvr

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