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 62
r of plates stated, andforced together by means of screws and heavy hydraulic pressure, con-tain from 80 to 90 per cent, of iron, and have a magnetic flux carryingcapacity only from 5 to 15 per cent, less than when they are made of anequal volume of solid iron. Magnetic Drag on the… … Fig. 294.—Circular concentric magnetic field surrounding a conductor carrying a current.If this conductor be moved across a magnetic field, as between the poles of a magnet, thelines of force will be distorted as in fig. 295, which will oppose the motion of the conductor. operation of a dynamo,…
Electrical engineering
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