DC Generator

Electric generator:

The generator is a machine that converts kinetic energy into electricity. The operation of the generators is based on the induction phenomenon, according to which, if a closed conductor moves close to a magnet, an electric current will be created in the conductor.

In a generator we have a wire winding (coil) between the two poles of a magnet (usually an electromagnet). If we rotate the wire in the magnetic field, then an electric current will leak through our conductor.

In the big generators of the industry, the mobile part (rotor) is the magnet, while the real (stator) is the coil.

The main difference between DC Motor and DC Generator is the out put of both.

DC Generator provide Electric Power on the output where as the Output of DC Motor is Mechanical power on its shaft.

Detail :  https://www.akmmechatronics.com/2020/04/dc-motors.html

Finally, there is a mechanism, the transformer, which forces the current to flow continuously in the same direction. This is the DC generator. If the generator does not have a transformer, it gives us a current whose direction is constantly changing, i.e. alternating current (A.C.). In fact, how fast the direction of the current is reversed is determined by the speed of rotation of the conductor. Such generators are called "alternators".