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 220
ield in which the armatureof a dynamo revolves, consists of four parts: 1. Yoke; 2. Cores; 3. Pole pieces; 4. Coils. These are shown assembled in figs. 201 to 204. 200 HAWKINS ELECTRICITY Ques. What is the object of the yoke? Ans. The yoke serves to connect the two limbs/ thatis, the cores and po e… … Fig. 201.—Salient pole, bipolar field magnet with single coil wound around the yoke. Ques. What may be said of the cores? Ans. The cores, which are usually of circular form, carrythe coils of insulated wire used to excite the magnets. Classes of Field Magnet.—Although numerous forms offield magnet…
Electrical engineering
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