Answer Happy

Shrinking Loop. A circular loop of flexible iron wire has aninitial circumference of 170 cm , but its circumference isdecreasing at a constant rate of 10.0 cm/s due to a tangential pullon the wire. The loop is in a constant uniform magnetic field ofmagnitude 0.500 T , which is oriented perpendicular to the plane ofthe loop. Assume that you are facing the loop and that the magneticfield points into the loop.
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Find the magnitude of the emf EEEMF induced in theloop after exactly time 9.00 ss has passed since thecircumference of the loop started to decrease.
Express your answer numerically in volts to three significantfigures.