A Potentiometer wire of length 1m has a resistance of 10 ohm is supplied at constant voltage of 6 V. Determine the emf of the primary cell which gives the balance point at 40 cm.
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A potentiometer wire of length 1m has a resistance of 10Ω. It is connected to a 6V battery in series with a resistance of 5Ω. Determine the emf of the primary cell which gives a balance point at 40cm.
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