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Question: A loop of wire of radius a = 35 mm has an electrical resistance R = 0.033 Î© . The loop is initially inside a uniform magnetic field of magnitude B0 = 1.3 T parallel to the loop's axis. The magnetic field is then reduced slowly at a constant rate, which induces a current I = 0.20 A in the loop. Find the time Î"t it takes the magnetic field to drop to zero.

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