Question

A cell balances against the length of 50 cm on a potentiometer wire when presented by resistance of 10 ohm the balancing length reduced 200 CM by resistance of 5 ohm calculate internal resistance

Answer 1

A cell balances against a length of 200 cm on a potentiometer wire, when it is shunted by a resistance of 8Ω. The balancing length reduces by 40 cm,