A coil of insulated copper wire is connected to a galvanometer; What will happen if a bar magnet is (i) pushed into the coil (ii) withdrawn from inside the coil (iii) held stationary inside the coil?
(i) If bar magnet is pushed into the coil of insulated copper wire, galvanometer shows the deflection as current is induced in the coil. (ii) When the bar magnet is withdrawn from the coil the galvanometer shows deflection again but now to the opposite side. (iii) When the bar magnet is held stationary inside the coil, the galvanometer does not show any deflection no induced current.
