SOURCES OF CURRENT

“A device which supplies current by maintaining a potential difference between two terminal points is called source of current”.

                    Every source of current convert non electrical energy to electrical energy, some sources of current are given below.

1.      ELECTRIC CELL: - It convert chemical energy; into electrical energy. Dry cell and automobile battery     are the best examples of primary and secondary cells.

2.      ELECTRIC GENERATORS: - It converts mechanical energy into electrical energy.

3.      THERMOCOUPLES: -They convert heat energy into electrical energy.

4.      SOLAR CELLS: - They convert sunlight into electrical energy.