Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 70
in the cast steel = 10,000 lines per sq. cm.GS2, the flux density in the air gaps = 10,000 lines per sq. cm.(B3, the flux density in the cast iron = 4,000 lines per sq. cm.and the ampere turns per cm. for the cast steel = 7, see Fig. 41. (B2 X10 the ampere turns per cm. for the air gaps = 8000 ,… … the magnetic pull Fig. 57.—Annular type of electromagnet.(10,000)2 X 2 X dynes = 64,000,000 dynes= 65,000 gm.- 65 kg. 46 PRINCIPLES OF ELECTRICAL ENGINEERING LChap.viii Other values are worked out in the same way, the work generally beingcarried out in tabular form as below: Flux density Ampere…
Electrical engineering
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