A closed coil having 100 turns is rotated in a uniform magnetic field `B = 4.0 X 10^(-4)` T about a diameter which is perpendicular to the field. The angular velocity of rotation is 300 revolutions per minute. The area of the coil is `25 cm^2` and its resistance is `4.0 Omega.` Find (a) the average emf developed in the half a turn form a position where the coil is perpendicular to the magnetic field, (b) the average emf in a full turn and (c) the net charge displaced in part (a).

Answer

A, B, C, D