A battery consists of a variable number ...

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 correct relationship between `I` and `n`?

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The correct Answer is:

`I=(nE)/(nr)=E/r`
`I vs,n`, a straight line parallel to `n`-axis.

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