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 456
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… … Fig. 282. if it is negative. When the difference of phase is equal to - A (Fig. 282), the attraction and repulsion are equal both in intensityand in duration, and the resulting effect is therefore nothing. But if the difference of phase exceeds -, and it always does exceed this •2t value, repulsion…
Electricity · Magnetism
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