When cells are connected in series, what is the total e.m.f of the combination ?
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A set of batteries are said to be connected in series when the positive terminal of one cell is connected to the negative terminal of the succeeding cell. The overall emf of the battery is the algebraic sum of all individual cells connected in series.
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When cells are connected in series the value of the individual cells is added. A single cell can provide a small current for a long time, or a big current for a short time. Connecting cells in series increases the voltage, but does not make the cells last longer
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