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In an experiment to measure the internal...

In an experiment to measure the internal resistance of a cell by potentiometer, it is found that the balance point is at a length of 2 m when the cell is shuntedd 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

1.5Ω

B

10Ω

C

15Ω

D

1Ω

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