Question

On what factors does the internal resistance of a cell depend?

Explain the factors affecting the internal resistance of a cell.

Answer 1

The internal resistance of a cell depends on:

1. The Surface Area of the Electrodes: The larger the surface area of the electrodes, the less the internal resistance.
2. The Distance Between the Electrodes: The more the distance between the electrodes, the greater is the internal resistance.
3. The Nature and Concentration of the Electrolyte: Less ionic the electrolyte or the higher the concentration of electrolyte, the greater is the internal resistance.
4. The Temperature of the Electrolyte: The Higher the temperature of the electrolyte, the less the internal resistance.