Elementary treatise on electricity and magnetism : founded on Joubert's "Traité élémentaire d'électricité" (1909)
Foster, G. Carey (George Carey), Porter, Alfred William, 1863-1939, Joubert, Jules François · London : Longmans · leaf 455
onbetween the two circuits. Fig.281 represents one of his experi-ments. An electromagnet is ti-a-versed by a powerful alternatingcurrent: when a metal ring isbrought near one end and left toitself, it is strongly i-epelled. The electrodynamic force ateach instant is proportional to theproduct of… … Fig. 281. 335] ELIHU THOMSONS EXPERIMENTS 43^ In Figs. 282 and 283, two sine curves, a and a, have beentiaced with the same period, but with amplitudes which areas 4:1. The ordinates of the curve b are taken equal to theproducts of the corresponding ordinates of a and a, and aredrawn above the line…
Electricity · Magnetism
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