PhysicsElectric cellsJAMB
A cell of e.m.f. 3 V and internal resistance 1 Ω is connected to a 5 Ω resistor. Find the current.
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Answer: C. 0.5 A
I = E/(R + r) = 3/(5 + 1) = 0.5 A.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.