Third: 4-1/2 volts and 50 amperes, also equal to 225 watts.
In either case, you will see we have 225 watts. These three windings are designated as series, parallel, and series multiple.
The Series Connection.—The illustration, Fig. 84, shows the series winding. Here the positive wire B is connected with the carbon pole C, and the wire D, wired up with the zinc pole, E, the connections being made directly through each cell, to the outlet wire F. Now, as we have six cells, the combined voltage is 1-1/2 × 6 = 9 volts.
As, however, all the cells now act as one cell, the amperage is just the same as of one cell, namely, 25.
Fig. 85. Parallel Wiring.
The Parallel Connection.—Fig. 85 shows the parallel connection. Here all the carbon terminals A are connected together in series by a wire B, and all the zinc terminals C by a wire D. In this method the voltage of the battery is the same as that of a single cell, but the amperage is the same as that of a single cell multiplied by the number of cells, namely, 25 amperes × 6.
Series Multiple Connection.—The series multiple, Fig. 86, is so arranged as to form two distinct batteries, 1 and 2. Each battery is connected up in series, by means of the wires A, which join the carbon and zinc. In this way we have at one end a pair of carbon terminals which are joined by a wire B, and at the other end a pair of zinc terminals, joined by a wire C.
Fig. 86. Multiple Wiring.