Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 356
tween two masses ofiron. This effect is shown in Figs. 257^ and 257^. The smallcircles with dots represent conductors carrying up-flowing cur-rents and the small circles with crosses represent conductors withdown-flowing currents. Tlic action of the currents in these bandsof conductors is to…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
