Magnet wire can be called enameled aluminum wire or enameled copper wire. It is insulated with a thin protective layer, and a permanent magnetic field is generated even when the conductor is in a straight coil and electricity is applied 
to the wire.

Magnet wires can be used for almost anything in generators, transformers, and various other electrical products. The only limitation is the distance from the coil or power source.

However, there are many types of enameled wires, and their insulating layer thickness and conduction mode are different. Enameled copper wire is usually thicker than enameled aluminum wire, and its thickness is compensated by an 
additional insulating layer.