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Question

A conducting ring of radius r and resistance R rolls on a horizontal surface with constant velocity v. The magnetic field B is uniform normal to the plane of the loop.


A
The induced emf, between O and Q is 2Bvr.
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B
An induced current I =2BvrR flows in the clockwise direction
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C
An induced current I =2BvrR flows in the anticlockwise direction.
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D
None of these
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Solution

The correct option is A The induced emf, between O and Q is 2Bvr.
about point O Ring is in pure rotation.

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