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A rectangular wire loop of slides 8cm and 2cm with a small cut is moving out of a region of uniform field of magnitude 0.3T directed normal to the loop. What is the emf developed across the cut if the velocity of the loop is 1cm/s in a direction normal to the longer side. How long will the induced current V last.



(a)2.4×104V;2s
(b)0.6×104V;8s
(c)2.4×104V;8s
(d)0.6×104V;8s

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