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 329
(6,300° Fahr.) may be more fullyappreciated when it is noted that the melting point of platinum is 3,195° Fahr. The crater hasthe appearance of a boiling substance which, in fact, it is. 2,420 HAWKINS ELECTRICITY positive electrode, and forming the arc steams, will vary withthe current, and… … Fig. 3,333.—Diagram for resistance of arcs of different lengths with cored carbons. *NOTE.—The temperature of the negative carbon (except at its extreme point) as pre-viously mentioned, is considerably lower than that of the positive. This difference is due tothe fact that the larger part of the…
Electrical engineering
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