There are N cells in the circuit of figure. The emf and internal resistance of each cell…
Physics · Class 12 · CBSE — Current Electricity
There are N cells in the circuit of figure. The emf and internal resistance of each cell are \(\varepsilon\) and r respectively. The points A and B in the circuit divide the circuit into n and (N - n) cells. The current in the circuit is:
- \(\frac {\varepsilon}r\)
- \(\frac {n\varepsilon}r\)
- \(\frac {N\varepsilon}{nr}\)
- Zero
Answer
(D) Zero
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