The component of the external magnetic field along the central axis of a 12 turn circular coil of radius 16 centimeter decreases from 1.90 T to 0.100 T in 3.80 second. If the resistance of the coil is 4.50 ohm, evaluate the magnitude of the induced current in the coil?
Find the direction of the current if the axial component of the field points away from the viewer?