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 168
he vital necessity ofcutting down these opposing forces as much as he possibly can. :,822 HAWKINS ELECTRICITY Wind Pressure,—The resistance of the air encountered by avehicle at normal speed is not a very serious matter, but withan increase of speed or with a head wind, the loss becomes quitelarge… … Fig. 4,065.—Weston volt ammeter of the type used on electric vehicles. In some types, theindex is side by side instead of end to end. Tire Friction.—The most important loss, perhaps, and onethat is least understood is the effect of tires. It is clear that the portion of any tire which is in contact…
Electrical engineering
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