Electricity for everybody; its nature and uses explained (1895)
Atkinson, Philip · New York, The Century Co. · leaf 23
ectric light or heat. This whole matter of the relations of the electric cur-rent to electric pressure and resistance may be brieflysummed up in the words of Ohms celebrated law: Thevolume of an electric current varies directly as the electricpressure by tvhich the current is impelled, and… … Fig. 1. convenient point, which may be closed for the transmis-sion of the current, or opened for its interruption, invarious ways, as by a sivitch, or a spring operated by apush-button. The switch, in its simplest form, as shownin Fig. 1, is a strip of brass or copper which can be turned 10…
Electricity
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