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 70
flected,and at the expense of the zinc rod. Exp. 7 With the wire arranged as in Exp. 6, interpose pieces oftin, steel, copper, iron, lead, gold, brass, aluminum, etc., betweenthe connecting wires, and the needle is deflected as before. Whenpieces of paper, glass, wood, mica, etc., are interposed,… … 52 PRACTICAL ELECTRICITY. not attract them. Wind a few turns of cotton-covered wire aroundthe iron rod and plunge it into the filings, after first connecting theends of the wires to the two plates in the tumbler. Filings arc nowattracted to the iron core, but drop off when the connection t<>…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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