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 177
rresters because of the property of alu-minum on which their action depends; that is, it depends on ihephenomenon that a non-conducting film is formed on the surfaceof aluminum when immersed in certain electrolytes. 1,696 HAWKINS ELECTRICITY If however, the film be exposed to a higher pressure, it…
Electrical engineering
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