Correct diagram for the determination of internal resistance of a primary cell by potentiometer

Draw a circuit diagram for the determination of the internal resistance of a cell using potentiometer. Derive the formula to be used.

Internal resistance of primary cell depends on :–

The internal resistance of a cell by potentiometer is given by

Determination Of Internal Resistance Of A Cell

Explain the determination of the internal resistance of a cell using voltmeter.

In order to determine the internal resistance of a primary cell by means of potentiometer the emf of the battery connected across the ends of the potentiometer wire should be

Describe with the help of neat diagram how will you determine the internal resistance of a cell by using potentiometer. Derive the necessary formula.