Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 380
e, 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, while the right-hand side of the ringpossesses an induced N-pole from the S-pole of the fieldmagnet at the same instant.… … Armature Core Loss-Hysteresis. 362 PRACTICAL ELECTRICITY. - _ VN lil . subjected to two opposite magnetisations in each revolution.Suppose the speed to be 2000 revolutions per minute, then there will be 4000 reversals ofmagnetisation per minute inthe core. Heat is developedas a result of the…
Electricity · Magnetism
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