-if the magnet is pulled out of the coil the direction of the emf is reversed
-If S pole instead of N ole is pushed into the coil, this reverses the current direction
-if the magnet is held still,no field lines are cut, so no induced emf or current.
-moving the wire in the opposite direction
-turning the magnet round so that the field direction is reversed
-if the wire is not moving,or is moving parallel to the field lines ,there is no induced emf or current