a potentiometer of length 1 m has a resistance of 10 ohm . determine the emf of the primary cell which gives a balance point of 40 cm.
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Current Electricity. A potentiometer wire of length 1 m has a resistance of 10 Ω. It is connected to a 6 V battery in series with a resistance of 5 Ω. ... So, all the resistors are connected in series.
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