A number of identical cells, n, each of emf E, internal resistance r connected in series are charged by a d.c. source of emf E', using a resistor R.
- Draw the circuit arrangement.
- Deduce the expressions for (a) the charging current and (b) the potential difference across the combination of the cells.
CBSE DELHI - SET 1 2008
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- $\text{I (nr + R) = }\varepsilon' - \text{n}\varepsilon$
- $\text{V} = \text{N}\varepsilon + \text{Inr}.$
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