it is observed that the potential difference across the first cell becomes zero. The value of R will be

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Two cells of equal emf and internal resistance r1 and r2 (r1 > r2) are connected in series. on connecting this combination to an external resistance R, it is observed that the potential difference across the first cell becomes zero. The value of R will be
06
Dec
Two cells of equal emf and internal resistance r1 and r2 (r1 > r2) are connected in series. on connecting this combination to an external resistance R, it is observed that the potential difference across the first cell becomes zero. The value of R will be it is observed that the potential difference across the [...]
Posted in: Cengage NEET by C.P Singh , Chapter 3 - Current Electricity , Part 2 ,
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