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In an experiment to measure the internal...

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 Omega` resistance and is at a length of `3 m` when the cell is shunted by a `10 Omega` resistance, the internal resistance of the cell is then

A

0.1ohm

B

1 ohm

C

2 ohm

D

0.5ohm

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