A conducting ring of radius r and resistance R rolls on ahorizontal 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 AThe induced emf, between O and Q is 2Bvr. about point O Ring is in pure rotation.