CBSE 2025 · Region 6 · Set 1 · Q22 · 3 marks
What is the difference between 'emf' and 'terminal voltage' of a cell ? Two cells of emfs $\displaystyle \mathrm{E}_{1}$ and $\displaystyle \mathrm{E}_{2}$ and internal resistances $\displaystyle \mathrm{r}_{1}$ and $\displaystyle \mathrm{r}_{2}$ are connected in parallel. Derive an expression for the emf and internal resistance of the equivalent cell.
Marking-scheme solution
Difference between emf and terminal voltage of a cell $\displaystyle 1$ Deriving expression for-
Current ElectricityCells in Series and in ParallelUnderstandshort_answermedium
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