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 209
nt. Ans. There are numerous types. It may consist of a clock-work device, a weight acting on a small drum or pulley. A UXILIARY APPARATUS 421 a modified dash pot arrangement, or a device operating by theexpansion of a conductor due to the heat generated by a currentpassing through it. Ques. How… … Fig. 493.—Diagram showing connections of a rheostat. The various resistance coils are con-nected to brass buttons or contacts. The rheostat is connected in series in the circuitthat it is to control. In operation when the lever is on contact 1, the current is opposedby all the resistance of the…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
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