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 24
er side, the graduatieascorrespond to the tangent of the angles of deflectioa. GALVANOMETERS 443 standard instrument, the amounts of deflection correspondingto particular current strengths. Thus, if it be once known that a deflection of 32° on a particulargalviinometer is produced by a current of… … Pig. 516.—Tangent galvanometer. It consists of a short magnetic needle suspended at thecenter of a coil of large diameter and small cross section. In practice, the diameter of thecoil is about 17 times the length of the needle. If the instrument be so placed that, whenthere is no current in the…
Electrical engineering
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