The Motor Effect

When a wire carrying an electric current is placed in a magnetic field, it may experience a force. The size of the force can be increased by:

Force on a current-carrying conductor in a magnetic field

The direction of the force is reversed if either the direction of the current or the direction of the magnetic field is reversed.

We can use Flemmings Left-hand rule to predict the direction of the force gernerated.

Flemmings Left-hand rule