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 301
-ING OR AWAY FROM IT; BUTTHEY REPEL EACH OTHER WHENTHE CURRENT FLOWS TOWARDIT IN ONE WIRE AND AWAYFROM IT IN THE OTHER. See Fig. 248 and Exp. 74. Themotion tends to make thewires not only parallel, butalso coincident. This law isvery important, and upon itsprinciple are constructed… … Fig. 249.—The Movable Coil (AB)May be Attracted or Repelledby the Stationary Coil (CD). ELEGTR OD YNA MICS. 283 it as the distance between them. The first and secondlaws may be further demonstrated by the ampere-frame coildescribed in ^f 175. Exp. 72 : Connect the ampere-frame coil and rectangular…
Electricity · Magnetism
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