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A small circular washer of radius 0.5cm is held directly below a long straight wire carrying currrent 10A. The washer is located 0.5m above the top of table. If the washer is dropped from rest, what is the magnitude of the average induced emf in the washer from the time it is released to the moment it hits the tabletop?Assume that the magnetic field is nearly constant over the area of the washer, and equal to the magnetic field at the center of the washer.

Shane Macguire , 10 Years ago
Grade upto college level
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