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 301
Fig. 282 PRACTICAL ELECTRICITY. … Fig. 248.—Attraction and Repul-sion Between Angular Currents. wires. There are also continuous curves embracing bothwires, due to the unison of some of the magnetic hues of bothwires. The wires tend to be drawn together by the tension along these lines of force. Thisattraction is demonstrated…
Electricity · Magnetism
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