Question

Answer in Brief.
On what factors does the internal resistance of a cell depend?

Answer 1

Internal resistance of a cell depends upon the following factors:

1. The surface area of the electrodes: Larger the surface area of the electrodes, less is the internal resistance.

2. The distance between the electrodes: As the distance between the electrodes increases, the internal resistance of the cell also increases. It is also affected by the nature, concentration, and temperature of the solution (electrolyte).

3. The nature and concentration of the electrolyte: Less ionic the electrolyte or higher the concentration of electrolyte, grater is the internal resistance.

4. The temperature of the electrolyte: Higher the temperature of the electrolyte, less is the internal resistance.