$A$ battery consists of a variable number $n$ of identical cells having internal resistance connected in series. The terminals of the battery are short circuited and the current $I$ measured. Which one of the graph below shows the relationship between $I$ and $n$?
Medium
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Here, $i=\frac{n E}{N R}=\frac{E}{R}$
Because $I$ is totally independent of $n$, hence it will remain constant.
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