A torch battery consisting of two cells of 1.45 volts and an internal resistance 
, each cell sending currents through the filament of the lamps having resistance 1.5ohms. The value of current will be
Text Solution
Verified by ExpertsThe correct answer is:
B
Here two cells are in series.
Therefore total emf = 2E.
Total resistance = R + 2r
∴ ∴ 
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