Suppose a uniform magnetic field is perpendicular to a 8.5 by 11 in. sheet of paper and a rectangular metal loop lies on the page, with its edges lining up with the edges of the sheet. The magnetic field is changing with time as described by B = 1.21e-3t, where B is in Tesla's and t is in seconds. a) Is the magnetic field increasing or decreasing? b) Find the magnitude of the emf induced in the loop.

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