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A student measures the terminal potentia...

A student measures the terminal potential difference `(V)` of a cell (of emf `epsilon` and internal resistance `r`) as a function of the current `(I)` flowing through it. The slope and intercept of the graph between `V` and `I`, then respectively, equal

A

`epsilon and -r`

B

`- r and epsilon`

C

`r and -epsilon`

D

`- epsilon and r`

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The correct Answer is:
B
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