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 47
ic induc-tion thus takes placebetween bodies in con-tact or separated from each other. Interpose between the adjacentends of the mas^net and iron bar pieces of brass, lead, glass, rubber,copper, etc. The filings are attracted to the same degree, when thesame distance is maintained, as when these… … Iron FHnigf Fig. 41.—Magnetic Induction. jMAA^eiTd^
Electricity · Magnetism
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