Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 10
rce of power. When wewish to use current on alarge scale, the dynamo meth-od is much the cheapest touse. Butj for all purposeswhere only a small amount ofcurrent is needed, it is muchcheaper to generate it bymeans of a battery. A powerful and efficientbattery for experimental pur- FIG 1 U A U poses… … 2 EASY ELECTRICAL EXPERIMENTS. thick and three inches square; four zinc rods $£ inches in diam-eter, such as may be bought at any electrical supply store ata cost of a few cents each, and 16 carbon rods, y2 inch indiameter and 5 inches long, such as may be picked up underany electric street light.…
Electric apparatus and appliances · Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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