A fundamental form of energy observable in positive and negative forms that occurs naturally or is produced ( in a generator) and that is expressed in terms of the movement and interaction of electrons knows as electricity.
electricity are two types :-
1) natural electricity which we see during rain.
2) artificial electricity which is generated by generator of invertor.
Electricity is obtained by man made and natural sources like solar energy, hydro power energy, wind energy, water energy etc etc.