It comprises two coils,a U-type iron core.On outmost layer of the coila are several turns of rubber wires,indicating the winding direction of the coils.

Each of the coils has two terminals what can be connected as series or in parallel.

For demonstrating on the fundamental structure and working principle of electro magnet.

1. Size:11x7.5x4.5cm

2. Size:15x12x3.5cm