An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It behaves exactly like a permanent magnet, like those magnets commonly used to stick items to our fridge.
To make a permanent magnet we need:
- One iron nail ( Could be fifteen centimeters (6 in) long )
- Three meters (10 ft) of copper wire
- One or more D-cell batteries
To make the electromagnet, we need to:
1. Wrap the Wire Around the Nail
2. Connect the Battery
And you are all set!
