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 26
ce the effective pressure is something lessthan the virtual, being denned as that pressure which isavailable for driving electricity around the circuit, or for doingwork. The difference between virtual and effective pressure isillustrated in fig. 1,237. Ques. Does a given alternating voltage affect… … Pic. 1,23-S.—Current or pressure carve illustrating form factor. It is simpied by the average ralue. For a sine wave the virtual value is —=■ times N - 2 T the average is — times the maximum, so that the form factor is —=or 1. wave which generates an alternating pressure wave has a maximum vathe…
Electrical engineering
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