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 141
fered to the magnetic flux by the substancemagnetized, being the ratio of the magnetomotive force to the mag-netic flux. MAGNETISM 121 The unit of reluctance or magnetic resistance is the oersted(named after Hans Christian Oersted, the Danish physicist) andis defined as: the reluctance offered by a… … Fig. 123.—Mutual action of solenoids. When two solenoids traversed by a current are allowedto act on each other, one of them being held in the hand and the other being movableabout a vertical axis, as shown in the figure, attraction and repulsion will take place justas in the case of two magnets…
Electrical engineering
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