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 182
nnected from the circuit? Ans. Part of the film deteriorate?. LIGHTXIXG PROTECTION DEVICES 1,701 Ques. What is the nature of the film? Ans. The film is composed of two parts, one of which ishard and insoluble, and apparently acts as a skeleton to holdthe more soluble part. The action of the cell… … Figs. 2,393 and 2,394.—Aluminum trays for Westinghouse electrolytic lightning arresters. Ans. There is a momentary rush of current which reformsthe part of the film which has dissolved. This current rush will have increasing values as the intervals of restof the cell are made greater. Many…
Electrical engineering
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