AB is a potentiometer wire of resistance 1 Ω being used to measure a small voltage...

AB is a potentiometer wire of resistance 1 Ω being used to measure a small voltage of 2/3 mV. The cell has an emf of 2 V and negligible internal resistance. For the balance point to be 2/3 (two thirds) of the way along the slidewire, as shown, the value of R in ohms must be:

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genius_generous answered 1 year ago

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