When a wire is moved in a magnetic field, voltage is created (induced) across the wire.                                   As the wire moves, it cuts through the lines of magnetic field, this effect induces voltage across      the wire.       The size of the induced voltage can be increased by:       Increasing the strength of the magnet.       Increasing the speed of movement.      If the direction of movement is reversed, the voltage induced is reversed.      Maximum voltage is created when movement is at right angle to magnetic field.