Question
Explain the structure of a dry cell.
✓
Answer
A dry cell consists of a zinc container, which acts as a negative terminal, and a carbon rod at the centre with a metal cap at the top end. The metal cap over the carbon rod acts as a positive terminal.
The zinc container is filled with a thick, moist paste electrolyte that surrounds the carbon rod. The chemical reaction between the electrolyte and the carbon rod produces electricity, and the current flows from the positive terminal of the cell through a circuit to the negative terminal. The dry cell is a single-use cell. It has to be disposed of once it is used up.
The zinc container is filled with a thick, moist paste electrolyte that surrounds the carbon rod. The chemical reaction between the electrolyte and the carbon rod produces electricity, and the current flows from the positive terminal of the cell through a circuit to the negative terminal. The dry cell is a single-use cell. It has to be disposed of once it is used up.
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