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A cell balances against a length of 200 cm on a potentiometer wire, when it is shunted by a resistance of 89. The balancing length reduces by 40 cm, when it is shunted by a resistance of 40. Calculate the balancing length when the cell is in open circuit. Also calculate the internal resistance of the cell.

A cell balances against a length of 200 cm on a potentiometer wire, when it is shunted by a resistance of 89. The balancing length reduces by 40 cm, when it is shunted by a resistance of 40. Calculate the balancing length when the cell is in open circuit. Also calculate the internal resistance of the cell.

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: A cell balances against a length of 200 cm on a potentiometer wire, when it is shunted by a resistance of 89. The balancing length reduces by 40 cm, when it is shunted by a resistance of 40. Calculate the balancing length when the cell is in open circuit. Also calculate the internal resistance of the cell.
Transcribed Image Text:: A cell balances against a length of 200 cm on a potentiometer wire, when it is shunted by a resistance of 89. The balancing length reduces by 40 cm, when it is shunted by a resistance of 40. Calculate the balancing length when the cell is in open circuit. Also calculate the internal resistance of the cell.
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