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A rectangular wire loop of sides 8 cm ...

A rectangular wire loop of sides 8 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0.3 T directed normal to the loop.What is the e.m.f. developed across the cut if velocity of loop is` 1 cm s^-1` in a direction normal to the (a) longer side (b)shorter side of the loop? For how long does the induced voltage last in each case?

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