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 59
ul rise in temperature. Armaturecores, pole pieces., and field magnet cores are specially subjectto these currents. THEORY OF THE ARMATURE 271 Ques. Describe the formation of eddy currents. Ans. In fig. 291, a bar inductor is seen just passing fromunder the tip of the pole piece N of the field… … Fig. 291.—Formation of eddy currents in a solid bar inductor. On account of its appreciablesize, the field is sometimes weaker at one point than another, hence the unequal electro-motive forces thus produced will induce eddy currents. induced along c d will be less than that induced along a b.…
Electrical engineering
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