Elementary lessons in electricity and magnetism (1906)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916, Schwetzky, Otto H. L. [from old catalog] · Chicago, Thompson & Thomas · leaf 352
don in 1863*It being impracticable to give to a horizontal sliding-piece so high a velocityas was necessitated, the velocity which corresponded to the resistance of awire was measured in the following way:—A ring of wire (of many turns),pivoted about a vertical axis, as in Fig. 135, was made to… … will have (see Rule Art. 395) an upward current induced in it, while thesouthern ,haif, in crossing from east toward west, will have a downward current induced in it. Hence therotating ring will, as it spins, actas its own galvanometer if a smallmagnet he hung at its middle ; themagnetic effect due…
Electricity · Magnetism
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