In an experiment to measure the internal resistance of a cell by a potentiometer, it is found that the balance point…..

Q. In an experiment to measure the internal resistance of a cell by a potentiometer, it is found that the balance point is at a length of 3m when the cell is shunted by a 5Ω resistance and is at a length of 3m when the cell is shunted by a 10Ω resistance, the internal resistance of the cell is then

(a) 1.5 Ω

(b) 10 Ω

(c) 15 Ω

(d) 1 Ω

Ans: (b)

Leave a Comment