explain the working of a simple dry cell.

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Working of a dry cell

Diagram of a dry cell
A dry cell is a source of electric current. It contains a paste of aluminium chloride inside a zinc container. Inside this paste, a cardboard container containing powdered manganese dioxide and carbon rod is placed. The cardboard container is a porous material through which a chemical reaction takes place between ammonium chloride paste and powdered manganese dioxide. The whole thing is then sealed. A metal cap is connected to the carbon rod. The tip of the metal cap and the base of the zinc container are called the positive and negative terminals of the dry cell. If the two terminals of the dry cell are connected by a metal wire, current flows through it.


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