Part II: A Moving Magnet in a Magnetic Field (Pickup Coil) What happens when a magnet moves through a coil in which electrons can move? Investigate the brightness of the light (current) as the number of loops is changed, as the speed of the magnetic changes, the area of the wire coil is changed, and the polarity of the moving magnet is changed. Changing Results Changing Results Changing Results Changing Single magnet's field Results