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 38
Fig. 28.—Two Parallel Bar Magnets, Unlike Poles Adjacent. porarily at least, study each one in detail as it is made, andreproduce the same by a sketch at the time it is being made. MAGNETIC FIELDS. 19 … ^^mmmmx . :,, 2 , ._ Fig. 29.—Two Parallel Bar Magnets, L
Electricity · Magnetism
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