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 260
lls, r, is 5 ohms, then E =CXr or 2 X 5 = 10 volts dropin the cells. If the voltmeter isconnected across the battery itindicates the P. D. 30 volts,when 2 amperes are flowing.If the external circuit is nowopened the voltmeter indicatesthe E. M. F of the cells, whichis the sum of all the… … YA\ Fi^. 217.—Fall of Potential Alonga Wire. Exp. 66.—In Fig. 217size, is stretched on a board between binding posts and a scale ofinches arranged directly above it. The wire is connected in circuitwith one or more cells, preferably of the Daniell ty[)e, so that the cur-rent flowing through the…
Electricity · Magnetism
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