A circular loop of flexible iron wire has an initialcircumference of 165.0\;{\rm cm}, but its circumference is decreasing at a constantrate of 12.0\;{\rm cm/s} due to a tangential pull on the wire. The loop isin a constant, uniform magnetic field oriented perpendicular to theplane of the loop of magnitude 0.500\;{\rm T}.
Part A
Find the emf induced in the loop, at theinstant when 9.0\;{\rm s} have passed.
Express your answer using twosignificant figures.
Part B
Find the direction of the induced current inthe loop, as viewed looking along the direction of the magneticfield.

Want an answer?