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 78
the heavier of the two,rests at the bottom of the battery jar, while the dilute sulphuricacid remains at the top. To suit this arrangement the copperand zinc elements are located as shown, the copper elements 58 HAWKINS ELECTRICITY being at the bottom, and the zinc element, shaped like a crowsfoot… … Pig. 55.—Wheelock cell; the elements are carbon and zinc. To set up, place the grid in thebottom of the jar and fill its two troughs each about half full of mercury. Place theporous cell in position on the grid so that it sits perfectly upright, resting in the recessof the latter. 1 he zincs stand…
Electrical engineering
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