The internal resistance of a cell is the resistance of:

Explanation

The correct option is: d) Material used in the cell:This option is the correct answer. The internal resistance of a cell is primarily attributed to the resistive properties of the materials used in constructing the cell, including the electrolyte, separator, and other components. These materials inherently offer some resistance to the flow of electric current, and this resistance is known as the internal resistance of the cell. Also according to doubtnut When we connect the plates of a cell by a wire, an electric current flows in the electrolyte (inside the cell) from the negative plate towards positive plate. The resistance offered by the electorlyte of the cell to the flow of current (irons) through it is called the internal resistance of the cell. Because of this resistance a part of the energy given by the cell is dissipated as heat inside the cell itself.