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 595
he magnetic flux through the coil. The resulting in-duced currents passinto the coil of asecond apparatusidentical with thefirst, and cause cor-responding changesin the magnetisationof the second mag-net, and motions in the iron plate which are identical with thoseof the first, except as regards… … Fig. 357. 462] TELEPHONE—MICROPHONE 573 generator and the latter as motor; the period continually variesfrom one moment to another, but at each instant is identical for thetwo. Experiments made by Lord Eayleigh on a telephone of thistype show that a current of 44 x 10~^ amperes alternating with…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.