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Physics · 2024 · 1 mark
CBSE 2024 · Region 1 · Set 2 · Q3
A student is asked to connect four cells, each of emf E and internal resistance r, in series. But she/he connects one cell wrongly in series with the…
A student is asked to connect four cells, each of emf E and internal resistance $\displaystyle r$, in series. But she/he connects one cell wrongly in series with the other cells. The equivalent emf and the equivalent internal resistance of the combination will be :
Official answer
(B)
4E and 3r
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