A radio is operated by eight cells each of e.m.f. 2.0V connected in series. If two of the cells are wrongly connected, the net e.m.f. of the radio is? by Sunday | Nov 16 | Physics JAMB | 0 comments A. 8V B. 10V C. 12V D. 16V Correct Answer: Option C = 12V Explanation Net e.m.f = (8 x 2) – (2 x 2) = 12V