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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

` -in` and r

B

`in` and -r

C

`-r` and `in`

D

`r` and `-in`

Text Solution

Verified by Experts

The correct Answer is:
3

Slope =-r and intercept=`epsilon`
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