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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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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