Question
Explain series connection of cells. Derive the formula for equivalent emf and equivalent internal resistance for series connection of cell.
✓
Answer
→The figure shows the series connection of two cells. The emf of two cells are $\varepsilon_1$ and $\varepsilon_2$ respectively and their internal resistences are $r_1$ and $r_2$ respectively. The current I is passing through this combination.
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