Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 38
induction which is proportional to dcf>/dt, the rate of changeof the flux. When the current has ceased to change, the e.m.f.of self induction becomes zero. CHAPTER IVWORK AND POWER 16. Transformation of Mechanical into Electrical Energy.— If the conductor xy, Fig. 19, be moved downward so as to… … Fig. 19. Right Hand Rule for generation of e.m.f.: thumb—motion; forefinger—lines of force; middle finger—e.m.f. Left Hand Rule for direction of force: thumb—force on conductor; fore-finger—lines of force; middle finger—current. in the direction shown; the direction of the current may be…
Electrical engineering
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