PhysicsElectric cellsJAMB
Three cells, each of e.m.f. 1.5 V and internal resistance 0.5 Ω, are connected in series. Find the total e.m.f. and internal resistance.
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Answer: B. 4.5 V and 1.5 Ω
In series, both e.m.f.s and internal resistances add.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.