Cell having an emf ε and internal resistance r isconnected across a variable external resistance RAs theresistance R is increased - the plot of potential differenceVacross Ris given by : [2012M]

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Cell having an emf ε and internal resistance r isconnected across a variable external resistance RAs theresistance R is increased - the plot of potential differenceVacross Ris given by : [2012M]