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 52
les at the bottom. Ques. What effect is produced by the like poles at thetop and bottom of the ring? Ans. The external effect will be the same as though therewere a single north and south pole situated respectively at thetop and bottom of the ring. 264 HAWKINS ELECTRICITY Ques. In the operation of… … Fig. 286.—Distortion of magnetic field due to cross magnetization. For clearness, the effectis shown somewhat exaggerated. A drag or resistance to the movement of the armatureis caused by the attraction of the north and south poles on the armature and pole piecesrespectively. Ques. What effect has…
Electrical engineering
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