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 150
and by hardwood wedges on the larger sizes. Ques. What is the effect of supplying current to aseries dynamo? Ans. It will run in a direction opposite to its motion as a.dynamo. Ques. What is the result of reversing the direction ofcurrent at the terminals of a series motor? Ans. It will not change… … Figs. 402 to 410.—Diagrams showing relative direction of rotation of motors and dynamos.£rom figs. 391 and 392, it is seen that the direction of the current in a motor armaturemust be such as will increase, by the flux it produces, the intensity at the leading polaredge and decrease the intensity…
Electrical engineering
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