Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 216
al value. CHAPTER XXVII ALTERNATING VOLTAGES AND CURRENTS 224. The Simple Alternator.—If the coil abed, Fig. 209, berotated between the poles N and S so that the conductors aband cd cut lines of force, an alternating e.m.f. will be found be-tween/ and g, the ends of the coil. The direction of the… … Fig. 209.—Simple two-pole alternator. ting lines of force, and the e.m.f. between / and g is zero. Indiagram B the e.m.fs. in the conductors are in such a directionas to force current from/ to g through the external circuit, there-fore / is the positive and g the negative terminal of the…
Electrical engineering
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