International Library of Technology · Scranton, International Textbook Co. · leaf 494
frame, untilthey are as close as possi-ble to the ends of the pole-pieces, still another typeof field-magnet results, asrepresented in Fig 1189.As shown, this is a very heavy and clumsy magnet, requir-.ing a large amount of material on account of the length ofthe magnet yoke, MM. If, however, half… … Fig. 1189. lighter magnetic circuit, that is quite extensively used,results, as represented in Fig. 1190. This form of circuit still has salient poles, since the polesare produced by the direct action of the magnetizing forces,,and not by the opposition of two magnetizing forces. APPLIED…
Electrical engineering
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