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 31
e coil M, and graduated circle N may be rotated on a vertical 450 HAWKINS ELECTRICITY axis, and the amount of angular movement necessary to bringthe needle to zero, measured on the graduated circle H. Oues. How is the current strength measured? Ans. It is proportional to the sine of the angle… … Fig. 524.—Sine galvanometer. It differs from the tangent galvanometer in that the verticalcoil and magnetic needle are mounted upon a standard free to revolve around a verticalaxis, with provision for determining the angular position of the coil. The needle may beof any length shorter than the…
Electrical engineering
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