Question

why dc machine work as generator​

Answer 1

Answer:

A DC generator is an electrical device used for generating electrical energy. The main function of this device is to change mechanical energy into electrical energy. ... Generator provides power to all the electrical power grids. The reverse function of the generator can be done by an electric motor.

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Answer 2

DC generators
Just as a simple DC electric motor uses direct current (DC) electricity to produce continual, rotary motion, so a simple DC generator produces a steady supply of direct current electricity when it spins around. Like a DC motor, a DC generator uses a commutator