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SS1: PHYSICS – 3RD TERM

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E.m.f in Series

When cells are connected in series, the positive terminal of one is connected to the negative terminals of the other. With this arrangement, a larger emf is obtained in the circuit with improved current.

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Etotal = E1 + E2 + E3

rtotal = r1 + r2 + r3

Where r = the internal resistance of the cell.

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