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 38
Fig. 29.—^Two Parallel Bar Magnets, Like Poles Adjacent. ^\ M ! f ■^ N.-> J ). I . . r s a>- z … Fig. 30.—Note-book Sketch of Fig. 26. Fig. 31,—Repulsion BetweenLike Poles. rltff>f-««fh«rl^flfaf,VtlSR
Electricity · Magnetism
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