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), 1833-1928 · New York : T. Audel & Co. · leaf 183
generated in thearmature when the machine is in operation. The long, straight,horizontal arrows joining the two poles of the magnet, represent THE DYNAMO: BASIC PRINCIPLES 163 the lines of force which make up the magnetic field between thepoles. The field is here assumed to be uniform, as indicated… … POLE Fig. 165.—Simple elementary alternator. Its parts are a single conducting loop, ABCD,placed between the poles of a permanent magnet, and having its ends connected with a.ring, F, and shaft, G, upon which bear brushes M and S, connected with the externalcircuit. When the loop is rotated…
Electrical engineering
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