In a thermal power station, coal is used for the generation of electricity. How energy changes from one form to another before it is transformed into electrical energy?
(a) Heat energy->Mechanical energy->Electrical energy
(b) Heat energy->Electrical energy->Mechanical energy
(c) Mechanical energy->Heat energy->Electrical energy
(d) Electrical energy->Heat energy->Mechanical energy
The question was asked in examination.
Query is from Conservation of Energy in chapter Laws of Motion of Engineering Physics I