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 117
tor, has the following advantages over the smooth type: ARMATURE CONSTRUCTION 329 1. The inductors are held more firmly in place to resist stressesdue to electromagnetic drag and centrifugal force; 2. The inductors are protected by the teeth against mechanicalinjury; 3. Less reluctance of the air…
Electrical engineering
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