Elementary treatise on electricity and magnetism (1903)
Foster, George Carey, 1835-1919, Joubert, Jules François, 1834-1910. Traité élémentaire d'électricité, Porter, Alfred William, 1863- joint author · London, New York, Longmans, Green, and co. · leaf 421
ircuit.—A harmonically varying current causes a harmonically varying electromotive forceto act on an adjacent circuit, and therefore gives rise to a currentwhich is also harmonic, and of the same period as itself, but which differs in phase. The difference of phase can never be less than -,nor… … Fig. 281. the ring. From Amperes has shown that, under these con-ditions, there is always lepulsionbetween the two circuits. Fig.281 represents one of his experi-ments. An electromagnet is tra-versed by a powerful alternatingciurent: when a ring is broughtnear one end and left to itself, itis…
Electricity · Magnetism
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