Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 301
AWAYFROM IT IN THE OTHER. See Fig. 248 and Exp. 74. Themotion tends to make thewires not only parallel, but |also coincident. This law isvery important, and upon its principle are constructed elec- Fig. 249.—The Movable Coil (AB tro-dynamometers and watt May be Attracted or Repelledmeters, ^ 272,… … ELECTROD YNAMICS. 283 as the distance BETWEEN them. The first and secondlaws may be further demonstrated by the ampere-frame ooildescribed in ^[ 175. Exp. 72: Connect the ampere-frame coil and rectangular coil inseries, and to a source of current, Fig. 249. Trace the direction ofcurrent in each…
Electricity · Magnetism
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