In a potentiometer expt. emf of a cell is by a length of on the potentiometer wire. When a cell is shunted by a 100 resistance, the balancing length reduced to 90 cm. What is the internal resistance of cell?
In a potentiometer expt. emf of a cell is by a length of on the potentiometer wire. When a cell is shunted by a 100 resistance, the balancing length reduced to 90 cm. What is the internal resistance of cell?
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Transcribed Image Text:is balanced
In a potentiometer expt, emf of a cell
by a length
length of 150cm on
the potentiometer wire. When a cell is
shunted by a 102 resistance, the balancing
length reduced to 90 cm. What is the
internal resistance of cell ?
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