The generator turns electrical energy into mechanical energy, whereas the motor performs the reverse. 

The magnetic force created between the armature and field windings drives the Shaft of the motor, whereas the Shaft of the Generator is coupled to the rotor and driven by mechanical force. 

In the case of a motor, the current is provided to the armature windings, while in a generator, the current is generated in the armature windings. 

The left-hand rule applies to the motor, while the right-hand rule applies to the generator.