Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 194
tion B A as indicatedby the arrows. At this instant, however, the brushes M and S 174 HAWKINS ELECTRICITY pass out of contact with segments F and G, and come intocontact with G and F respectively; that is, M leaves F andcontacts with G, while S leaves G and contacts with F. Theeffect of this is to… … FlG. 182.—Gramme ring armature with one coil, and characteristic sine curve below. Withone coil as shown, there are two pulsations of the current per revolution of the armature. Ques. How is this indicated by the sine curve? Ans. The sine curve, instead of falling below the axis, as infigs. 169 to…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
