Two cells of equal e.m.f. and of internal resistances R1 and R2 { R2 > R1} 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
1,499
2,499
40% off
3,999
5,499
27% off
999
1,499
33% off
5.0
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