Elementary treatise on electricity and magnetism : (1905)
Foster, G. C. (George Carey), 1835-1919, Joubert, J. (Jules François), 1834-1910, Porter, Alfred W. (Alfred William), 1863-1939 · London ; New York ; Bombay : Longmans, Green, and Co. · leaf 550
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 529 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 Rayleigh on a telephone of thistype show that a current of 4*4 x 10^ amperes alternating with…
Electricity · Magnetism
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