Question Answers

Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A potentiometer circuit has been set up for finding the internal resistance of a given cell. The main battery, used across the potentiometer wire, has an emf of 2.0 V and a negligible internal resistance. The potentiometer wire itself is 4 m long. When the resistance, R, connected across the given cell, has values of (i) infinity (ii) 9.5Ω The ‘balancing lengths, on the potentiometer wire are found to be 3m and 2.85 m, respectively. The value of internal resistance of the cell is

A potentiometer circuit has been set up for finding the internal resistance of a given cell. The main battery, used across the potentiometer wire, has an emf of 2.0 V and a negligible internal resistance. The potentiometer wire itself is 4 m long. When the resistance, R, connected across the given cell, has values of (i) infinity (ii) 9.5Ω The ‘balancing lengths, on the potentiometer wire are found to be 3m and 2.85 m, respectively. The value of internal resistance of the cell is

A potentiometer circuit has been set up for finding the internal resistance of a given cell. The main battery connected across the given cell has an emf of 2.0 V and a negligible internal resistance. The potentiometer wire itself is 4 m long. When the resistance has values of (i) infinity (ii) 9.5Ω The 'balancing lengths on the potentiometer wire are found to be 3m and 2.85 m R respectively. The value of internal resistance of the cell is used across the potentiometer wire