An electric battery is a device consisting of two or more electro-chemical cells that convert stored chemical energy into electrical energy.Each cell has a positive terminal, or cathode, and a negative terminal, or anode. The terminal marked positive is at a higher electrical potential energy than is the terminal marked negative.

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An electric battery consist of two or more electro chemical cells that convert stored chemical energy into electrical energy. Each cell has both positive and negative terminal, or cathode and anode. The terminal marked positive at a higher potential energy than the terminal marked negative. The terminal marked negative is the of electrons that when connected to an circuit will flow and deliver energy to an external device. When battery is attached to circuit, electrolytes move as ions within, allowing the chemical reactions to be completed at separate terminals and so deliver energy to external circuit. It is the movement of those ions within the battery which allows current to flow out of battery to perform work. Although the term battery means device with multiple cells, single cells are also known as batteries.



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