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A rectangular wire loop of sides 8 cm an...

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 emf developed across the cut if the velociy of the loop is `1 cm s^-1` in a direction normal to the:
longer side of the loop? for how long does the induced voltage last in each case?

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