Acircular loop of flexible iron wire has an initial circumference of 165.0 cm, but its circumference is decreasing at a constant rate of 12.0 cm> s due to a tangential pull on the wire. the loop is in a constant, uniform magnetic field ori- ented perpendicular to the plane of the loop and with magnitude 0.500 t. (a) find the emf induced in the loop at the instant when 9.0 s have passed. (b) find the direction of the induced current in the loop as viewed looking along the direction of the magnetic field.