A resistance R is connected across a cell of emf ε and internal resistance r.

Question

A resistance R is connected across a cell of emf ε and internal resistance r.

A resistance R is connected across a cell of emf ε and 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 ε, V and R.

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

The expression for ‘r’ in terms of e, V and R is r = (ε/v - 1)R.

5 views Answered 2023-02-05 15:29