State the energy changes that occur in an electric generator (or dynamo).

An electric generator converts :

State the energy changes that occur in the lighting of a torch bulb.

An electric generator is based on :

State the energy changes that occur in the Burning coal while operating a steam engine.

State the energy changes that occur in the unwinding of a watch spring.

What is an a.c. generator or Dynamo used for ?

An electric generator actually acts as :

State the energy changes in the following cases while in use : An electric iron

In electric wind stations, the potential energy of wind changes into electric energy. _____

State whether the following statements are true or false. (a) An electric motor converts mechanical energy into electrical energy. (b) An electric generator works on the principle of electromagnetic induction. (c) The field at the center of a long circular coil carrying current will be parallel straight lines. (d) A wire with a green insulation is usually the live wire of an electric supply.