solve

4. A circular copper ring is held above a permanent magnet, centred on the axis of the magnet, as shown. When the ring is released, there is (Faraday and Lenz's law) a. a counter-clockwise current in the ring, and a repulsive force from the magnet b. a clockwise current in the ring, and a repulsive force from the magnet c. a counter-clockwise current in the ring, and an attractive force from the magnet d. a clockwise current in the ring, and an attractive force from the magnet e. no net force from the magnet S