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
In a circuit where the cell is rightly connected, two similar poles should not come side by side.
ET = 2v + 2v + 2v + 2v + 2v + 2v + (2v - 2v) [(2v - 2v) due to wrong connection]
ET = 12V OR
Net e.m.f = (8 x 2) - (2 x 2)
= 12V
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