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A flexible, circular conducting loop of radius 0.15m and resistance 4.0(omega sign) lies in a uniform magnetic field of 0.25t. The loop is pulled on opposite sides by equal forces and stretched until it's enclosed area us essentially zero m^2. It takes 0.30s to close the loop.

(a) determine the magnitude of the emf induced in the loop.

(b) at what rate is heat generated in the loop?

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