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Q.

A conducting square loop of side 'a' is moving in its own plane with a constant velocity 'V' perpendicular to one of the sides in a uniform magnetic field as shown. The magnetic field is directed into the plane of paper. In the situation in Fig :

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a

Magnetic flux through the loop is zero and induced emf is also zero

b

Magnetic flux through the loop is non-zero and induced emf is zero

c

Magnetic flux through the loop is non-zero and induced emf is also non-zero

d

Magnetic flux through the loop is zero and induced emf is non-zero

answer is B.

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Detailed Solution

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The change in magnetic flux associated with the loop is zero as B is uniform everywhere.

As there is no change in flux, induced EMF is zero and therefore no current induced 

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