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 196
rent having a frequencyequal to the rate at which the primary circuit is made and broken bythe interrupter. The high voltage low frequency current thus producedcharges the aerial and grounded wires SA, and E, with positive andnegative electricity and establishes a difference of pressure of… … 1^ ^1^ ^V** ^!^ ^1 1 1 1 1 1 I 4~ 1 1 1 A E I LHP Fig. 3,124.—Diagram illustrating the reflection of electric waves at the surface of a conductor.*The rack here shown, representing a charged body, is supposed to be oscillating back-wards and forwards and transmitting a disturbance through the…
Electrical engineering
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