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In a potentiometer experiment, the balan...

In a potentiometer experiment, the balancing with a cell is at length 240 cm. On shunting the cell with a resistance of `2 Omega`, the balancing becomes 120 cm. The internal resistance of the cell is

A

`4 Omega`

B

`2 Omega`

C

`1 Omega`

D

`0.5 Omega`

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The correct Answer is:
B
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