Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 350
ch a machine is called a compound u-ounddynamo, to distinguish it from a scries woundmachine, for example, which dispenses withthe shunt coil. In all self-exciting machines there isenough residual magnetism left in the ironcores after stopping to start feeble inducedcurrents when started up again.… … Fig. 318. The comiwund-wound dynamo )( 358. The electric motor. In construction the electric motordiffers in no essential respect from the dynamo. To analyzethe operation as a motor of such a machine as that shown inFig. 313, suppose a current from an outside source is first sentaround the coils of…
Physics
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