Question

Write the working of DC generator and DC motor explain it ?

Answer 1

There are two types of generators, one is ac generator and other is DC generator. Whatever may be the types of generators, it always converts mechanical power to electrical power. An AC generator produces alternating power. A DC generator produces direct power. Both of these generators produce electrical power, based on same fundamental principle of Faraday's law of electromagnetic induction. According to this law, when a conductor moves in a magnetic field it cuts magnetic lines of force, due to which an emf is induced in the conductor. The magnitude of this induced emf depends upon the rate of change of flux (magnetic line force) linkage with the conductor. This emf will cause a current to flow if the conductor circuit is closed.
Hence the most basic tow essential parts of a generator area magnetic fieldconductors which move inside that magnetic field.

Now we will go through working principle of DC generator. As, the working principle of ac generator is not in scope of our discussion in this section.