Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 154
one group byOhm^s Law (Formula 37). Consider the results as the data for one cell and then make cal-culations for the numberof such cells (groups)arranged in parallel (byFormula 39). Prob. 52 : A multiple-series combination of 8cells is joined to an ex-ternal resistance of 3ohms. The cells… … Fig. 114.—Series-Multiple Grouping of Cells. Four cells in parallel, two groups in series, equivalent to two cells in series and four groups in parallel. E. M. F. of 2 groups in series = 2 x2 = 4 volts. Internal resistance of 1 group = nq By Formula (38) .125 ohm. E = 2 volts, nq = 4 cells in 1…
Electricity · Magnetism
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