Answered: 1. A thin ring rotates about an axis… | bartleby

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1. A thin ring rotates about an axis perpendicular to a uniform magnetic field H. Its initial frequency of
rotation is a. Find the time it takes the frequency to decrease to 1/e of its original value under the
assumption that the energy goes into Joule heat. Display your answer in terms of conductivity, mass
density of the ring, and field.

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