Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 154
m. E = 2 volts, nq = 4 cells in 1 group, r = .5 ohm. By Formula (36) Internal resistance of 2 groups in series = r Xns = .125 X 2= .25 ohm. r of 1 group = .125 ohm, ns = 2 groups. By Formula (31) C - kT? = 3 + .25 = 123 amPeresR=3 ohms, r of 2 groups in series = .25 ohm; E=4 volts, 2groups in… … Fig. 114.—Series-Multiple Grouping of Cells. Four cells in parallel, two groups in series, equivalent to two cells iu series and four groups in parallel. 136 PRACTICAL ELECTRICITY. group and divide the product by the number of groups in multiple.The number of cells in each group must be the…
Electricity · Magnetism
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