The length of a wire of a potentiometer is 100cm and emf of its standard cell is E volt it is employed to measure emf of a battery whose internal resistance is 0.5 Ohm. If the balance point is obtained at l=30cm from the positive end
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The length of a wire of a potentiometer is 100 cm, and the emf of its standard cell is E volt. It is employed to measure the emf of a battery whose internal resistance is 0. 5Ω.
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