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In a potentiometer experiment, the balancing with a cell is at length 240 cm.

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

Options

(a) 1Ω
(b) 0.5Ω
(c) 4Ω
(d) 2Ω

Correct Answer:

2Ω

Explanation:

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