Question

is DC generator coming in 10th CBSE exam

Answer 1

Yes it is very important.....And motor also......Principle of DC Generator
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 are
1. a magnetic field
2. conductors which move inside that magnetic field.