What is the source of electric current in a battery?
1 Answer
There are chemicals in the battery. The chemical energy is converted into electrical energy and provides the current.
Explanation:
A baterry basically consists of electrochemical cells.
When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that when connected to an external circuit will flow and deliver energy to an external device.
When a battery is connected to an external circuit, electrolytes are able to move as ions within, allowing the chemical reactions to be completed at the separate terminals and so deliver energy to the external circuit. It is the movement of those ions within the battery which allows current to flow out of the battery to perform work.
