Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 380
consider the polarity of thecore at one instant during its revolution, Fig, 346 ; the left-hand side of the ring has a S-pole induced in it by the N-poleof the field magnet, wThile the right-hand side of the ringpossesses an induced N-pole from the S-pole of the fieldmagnet at the same instant. At… … Fig. 346.—Armature Core Loss-Hysteresis. 362 PRACTICAL ELECTRICITY.
Electricity · Magnetism
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