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[" 48.Two cells,having the same emf,are ...

[" 48.Two cells,having the same emf,are connected in "],[" series through an external resistance "R" .Cells have "],[" internal resistances "r_(1)" and "r_(2)(r_(1)>r_(2))" respectively."],[" When the circuit is closed,the potential difference "],[" across the first cell is zero,The value of "R" is "],[" ation "]

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