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 14
anoscope becomes a galvanometer. GALVANOMETERS 4.i:i Oues. For what use are galvanometers employed? Ans. They are used for detecting the presence of an electriccurrent, and for determining its direction and strength. Oues. How is the direction and strength of the currentindicated? Ans. When a… … Fig. .)0o.—Effect upon a magnetic needle of a neighboring current in a coil. The coil as shown,is equivalent to several loops, that is, the force tending to deflect the needle is equal tothat of a single loop multiplied by the number of turns. Hence, by using a coil with alarge number of turns, a…
Electrical engineering
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