A battery consists of a variable number $n$ of identical cells (having internal resistance reach) which are connected in series. The terminals of the battery are short-circuited and the current $I$ is measured. Which of the graphs shows the correct relationship between $I$ and $n \,?$
NEET 2018, Medium
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Curtent drawn from the
cell is
$I=\frac{n \varepsilon}{n r}=\frac{\varepsilon}{r}$
$\mathrm{So}, I$ is independent of $n$ and $I$ is constant.
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