Yesterday our science team tinkered around with wires. We studied how we wrapped the wire around the bolt and saw if their was a difference in strength. At first I thought their would not be a difference in strength. But when I found out that the more wire flowing through the bolt is creating more energy! I new that the electromagnet would pick up more paperclips. The difference from a temporary magnet you can,t cut the flow of energy an electromagnet you can.
Do all magnets have north and south?