When the electromagnet is energized, the properties are the same as the magnet.

Their difference is:

1. The magnetic pole of the electromagnet can be changed, which is determined by the positive and negative poles of the electricity and the winding direction of the coil. 2. The magnetism of the electromagnet can also be changed. There is magnetism when it is energized, and there is no magnetism when it is not energized, and the magnet is magnetism under any circumstances.

3. The magnetic force of the electromagnet can also be changed, which is related to the number of turns and current intensity of the coil, while the magnetic force of the magnet cannot be changed.