PhysicsElectric cellsWAEC
A cell of e.m.f. 9 V and internal resistance 1 Ω supplies a current of 2 A. The lost volts are
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Answer: B. 2 V
Lost volts = Ir = 2 × 1 = 2 V.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.