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A circular coil of wire has 25 turns and has a radius of 0.075 meter. The coil is placed in a variable magnetic field whose behavior is shown on the graph. At all times, the magnetic field is directed at an angle of 75 degree relative to the normal to the plane of a loop. Obtain the average emf induced in the coil in the time interval from t = 5.00 s to 7.50 second?

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