Draw a schematic diagram of an electric circuit consisting of a battery of two cells each of 1.5 V, 5 Ω, 10 Ω and 15 Ω resistors and a plug key, all connected in series.
The emf of each cell is 1.5 V.
When the two cells are connected in series, the emf of the battery becomes (1.5 + 1.5) V = 3 V.
Therefore, the schematic diagram of the series circuit is as follows:
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