A resistance R is connected across a cell of emf eand internal resistance r. A potentiometer now measures the potential difference between the terminals of the cell as V. Write the expression for r in terms of epsi, V and R.

A resistance R is connected across a cell of emf eand internal resista

1.	A resistance R is connected across a cell of emf eand internal resistance r. A potentiometer now measures the potential difference between the terminals of the cell as V. Write the expression for r in terms of epsi, V and R.
Answer» SOLUTION :`R= (EPSI - V)/(V) . R`

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A resistance R is connected across a cell of emf eand internal resistance r. A potentiometer now measures the potential difference between the terminals of the cell as V. Write the expression for r in terms of epsi, V and R.

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