When the North-pole of a magnet is moved towards a coil connected to a galvanometer, the galvanometer in the circuit shows a deflection indicating a current (and hence an emf) in the circuit. The deflection continues as long as the magnet is in motion. A deflection can be observed if and only if the coil and the magnet are in relative motion. When the magnet is moved away from the coil, the galvanometer shows a deflection in the opposite direction. Bringing the South-pole towards the coil produces the opposite deflection as bringing the North pole. Faster the magnet or the coil is moved, larger is the deflection produced. By this experiment we can conclude that: the relative motion between the coil and the magnet generates an emf (current) in the coil.
