Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 21
ield. 11 2 DIRECT-CURRENT MOTORS armature conductors. The rotation of the armature in the magneticfield generates an electromotive force, but there is no mechanical forceupon the conductors due to this action in itself. When, however, acurrent flows, it sets up a magnetic field of its own about the… … Fig. 3. Magnetic Field about a ConductorCarrying a Current. Fig. 3. Magnetic Field around Conductorin Dynamo or Motor Air-Gap. Since the magnetic lines of a field endeavor to straighten andshorten themselves, the result of this distribution is a force upon thewire, pushing it in the direction of…
Electrical engineering
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