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 317
ust he expended in pro-portion to the additional electrical energy furnished. Lenzs Law is further illustrated in Fig. 265, where theprimary body, A, is an electromagnet with its polarity as in-dicated. On moving this electromagnet toward the secondarycoil, B, the induced current flows so as to… … Fig 265.—The Polarity of the Induced Cur-rent Tends to Stop the MotionProducing It.—Lenzs Law. ELECTROMAGNETIC INDUCTION. 299 their separation. The attractions and repulsions take placeonly while the coil is moving. If the coil stops the inducedcurrent in the secondary also stops, even though the…
Electricity · Magnetism
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