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CBSE - XII Science - Physics - Current Electricity

The length of potentiometer wire is 5m. It is connected to a battery of constant emf..for a given leclanche cell, the position of galvanometer deflection is obtained 100 cm. If the length of the potentiometer wire be made 8 m instead of 5m, calculate the length of wire for zero deflection in galvanometer for same cell.

Asked by Mrinal 4th March 2013, 4:29 PM
Answered by Expert


It will be proportional in these two cases.
so now the deflection will be obtained at=8/5  x 1= 1.6m
Answered by Expert 4th March 2013, 5:13 PM

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