A radio is operated by eight cells each of e.m.f. 2.0V co...
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
8V
10V
12V
16V
Correct answer is C
Net e.m.f = (8 x 2) - (2 x 2)