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Question
Three identical cells each of emf 2V and internal resistance 10 Ω are connected in series to form a battery. The battery is then connected to a parallel combination of two identical resistors, each of resistance 6 Ω. Find the current delivered by the battery.
Solution
Total Resistance, `R_r = 1 + 1 + 1 + (6xx6)/(6+6)`
`R_r = 3 + 36/12 = 6 Ω`
`V_r = 2 + 2 + 2 = 6V`
`I = V_r/R_r = 1 A`
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