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- · New York, T. Audel · leaf 206
ated wire, so that when rotated, a powerful ■d portions in the t« • -en in the position shown top and bottom, finding a directing< When in the position shown in the second diagram, the lines are converged so as to pass through the armature core. Fig.1.460 shows detail of the armature core Figs…
Electrical engineering
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