Question

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 2 m, when the cell is shunted by a 5 Ω resistance and is at a length of 3 m when the cell is shunted by a 10 Ω resistance. The internal resistance of the cell is then

(a) 1.5 Ω
(b) 10 Ω
(c) 15 Ω3
(d) 1 Ω

Answer 1

Answer:

1 ohm

Explanation:

resistance is depend on null point ( length )

its direct version