Elementary lessons in electricity and magnetism (1906)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916, Schwetzky, Otto H. L. [from old catalog] · Chicago, Thompson & Thomas · leaf 445
wire, of thesame size, and of exactly «qual numbers of turns of wire.The. secondary coils are joined to a telephone T, andare Wound in opposite directions. The result of thisarrangement is that whenever a current either begins orstops flowing in the primary coils, Pi induces a currentin Sj, and P,…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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