The electromagnet is positioned between the poles of another magnet. When current from the voltage source flows Electromagnetic Motor china through the coil, a magnetic field is produced around the electromagnet. The poles of the magnet interact with the poles of the electromagnet, leading to the motor to turn. … The more coils, 
the stronger the motor.
When a power current flows through a loop or coil of wire, placed between the two poles of an electromagnet, the electromagnet exerts a magnetic force on the wire and causes it to rotate. The rotation of the wire starts the motor. As the wire rotates, the electric current changes directions.