Electricity experimentally and practically applied; a book for the beginner and for the practical man, principles, experiments, practical applications and problems (1910)
Ashe, Sydney Whitmore · New York, D. Van Nostrand company · leaf 38
16 VOLTSd.C. Fig. 20 a. — Magnet Pole travels alongLines of Force. … 16 EXPERIMENTAL ELECTRICITY with a piece of glass and obtain a magnetic spectrum with iron filings sothat it can be shown that the magnet pole will travel along the path ofthe magnetic spectrum. Place the current on the circuit, and the mag-net pole will be attracted to one pole of the…
Electricity · Electrical engineering
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