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 27
in equilibrium, the component ae = H sin x isequal and opposite to ac, hence from which ab cos « = H sin x ab = H = H tan x cos X Since ab is proportional to the current, ab = k C = K tan x 446 HAWKINS ELECTRICITY in which it is a constant depending upon the instrument. For any othercurrent C, kC =… … Fig. 520.—Graduation of tangent galvanometer scale with divisions representing tangentvalues. In the figure let a tangent OT be drawn to the circle, and along this line let anynumber of equal di\-isions be set off, beginning at O. From these points draw lines back tothe center. The circle will thus…
Electrical engineering
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