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a potentiometer consist of a wire of lenght 4m and internal resistance 10ohm. if connected to a cell of emf 3v the potential gradient across the wire

a potentiometer consist of a wire of lenght 4m and internal resistance 10ohm. if connected to  a cell of emf 3v the potential gradient across the wire

Grade:12th pass

1 Answers

Sandeep Pathak
askIITians Faculty 25 Points
6 years ago
By internal resistance, we guess you mean the resistance of the wire. We will assume the cell has zero internal resistance. Then potential gradient across the wire is 3V/4m = 0.75 V/m.

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