Small motors, transformers, electromagnets; a practical presentation of design and construction data for small motors, small low- and high-tension transformers, electromagnets, and induction coils (1920)
Stoller, Hugh Montgomery, Austin, F. E. (Frank Eugene), 1873-, Seeger, Edwin Wilbur, 1892- joint author, American Technical Society · Chicago, American Technical Society · leaf 256
verylow, and therefore iron is used in nearly all magnetic structures.The unit of reluctance is the rel, which is defined as thereluctance of a magnetic circuit through which a magnetomotiveforce of 1 ampere turn will force a flux of 1 maxwell. For airand other nonmagnetic materials, the rel is the… … Fig. 2. Magnetic Field about a Turn of Wire (R = O (2) 243 4 ELECTROMAGNETS AND COILS or * The reluctance of a magnetic path is proportional to itslength; that is, the reluctance of a 1-inch rod 2 inches long willbe one-half that of a 1-inch rod 4 inches long. The reluctanceis inversely…
Electric motors · Electric transformers · Electromagnets · Induction coils
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