Two cells of same emf E but internal resistance r1 and r2 are connected in series to an external resistor R (Fig 3.7).

Two cells of same emf E but internal resistance r₁ and r₂are connected in series to an external resistor R (Fig 3.7). What should be the value of R so that the potential difference across the terminals of the first cell becomes zero.

Two cells of same emf E but internal resistance r1 and r2 are connected in series to an external resistor R (Fig 3.7).

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