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 130
u- Ans. Voltmeters of this type are not affected by magneticfields, and as their self-induction is small, they can be used on AMMETERS, VOLTMETERS, AND WATTMETERS 549 either direct or alternating currents; but they possess certainserious defects: they consume more current than the other… … Figs. 636 and 637.—Thompson inclined coil portable indicating instruments. Pig. 636, am-n^eter type P interior; fig. 637, wattmeter, type P, interior. These instruments, thoughprimarily designed for use on alternating current circuits, may also be used on directcurrent circuits, by making reversed…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
