An unknown cell balances 300 cm of wire in a potentiometer circuit, but the balance length reduces to
280 cm when a resistance of 28 ohm is added in parallel with the cell.A standard cell of emf 1.1V balances
220 cm on the same potentiometer. Find the balance length (in cm)when 48 ohm resistance is connected
across the unknown cell.
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1 Answers
1161Do you have any idea of working principle of Potentiometer? If not then wait for the classes, once you understand the concept, this question will be a cake walk.
