`2A` cell having an emf `epsilon` and internal resistance `r` is connected across a variable external resistance `R`. As the resistance `R` is increased, the plot of potential difference `V` across `R` is given by

Options

A.
B.
C.
D.

Answer

B

Explanation

`E=I(R+r)=IR+Ir`
`E=V+Ir`
`E=V+(Er)/(R+r)`
`V=E-(E)/(R+r)xxr" "Y=C-(1)/(x)`