A circular loop in the plane of the paper lies in a 0.34T magnetic field pointing into the paper. If the loop’s diameter changes from 20.0cm to 6.6cm…

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A circular loop in the plane of the paper lies in a 0.34T magnetic field pointing into the paper. If the loop’s diameter changes from 20.0cm to 6.6cm in 0.40s. What is the magnitude of the average induced emf?

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