That is I know induction is the cutting of magnetic field lines with a coil of wires, but the plants don’t use iron lodestone like the examples in textbooks do they?

They must use electromagnets. But then the question is how does the current from the electromagnet originate? I suppose you could use a battery?

In a nutshell, please answer the following questions.

1) Is permanant magnet material neccessary to generate electric current?
2) is permanant magnetic material present in the generators one would buy from home depot or something?
3) and do coal powered power plants use permanant magnets to form the current that runs the electromagnets that spin within the massive generators?