Question

A copper disk is placed between the poles of a magnet, as shown in Fig.. In the electric circuit shown in the figure, a galvanometer is connected in place of the battery. In which direction will the induced current flow when the disk is rotated: (1) clockwise, (2) counterclockwise (looking from the north pole)?

Answer 1

In the first case, the current flows from the axis of the disk to the lower edge. In the second case, the current is reversed.