The e.m.f. of a cell is balanced by a Tength of 120 cm of potentiometer wire. When the cell is shunted by a resistance of 10 №, the balancing length is reduced by 20 cm. Find the internal resistance of cell.
The e.m.f. of a cell is balanced by a Tength of 120 cm of potentiometer wire. When the cell is shunted by a resistance of 10 №, the balancing length is reduced by 20 cm. Find the internal resistance of cell.
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Transcribed Image Text:The e.m.f. of a cell is balanced by a
Yength of 120 cm of potentiometer wire. When
the cell is shunted by a resistance of 10 , the
balancing length is reduced by 20 cm. Find the
internal resistance of cell.
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