Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 326
te around the disc in theform of two semi-circles. In the left-hand one the directionis anti-clockwise, producing a N-face on the disc which re-pels the N-pole of the magnet, and tends to stop the motion23roducing it. On the right-hand side a S-face is produced,attracting the N-pole, and again… … ELECTROMAGNETIC INDUCTION, 307 the magnet moves the paths of the eddy currents also change.They will always be set up with the maonet as their diame-ter, and each half of the disc will be of opposite polarity.The position which the magnet see^s is never attained andcontinuous rotation results as…
Electricity · Magnetism
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