A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 47
a bit of sulphur which has been briskly rubbedby a piece of silk. As soon, however, as the balltouches the sulphur and receives a charge, it isrepelled, as shown at B, Fig. 29. These attractions ard repulsions are due to theeffects of electrostatic induction. (See Induction,Electrostatic.)… … Magnetic Attraction. attracts the S. pole of the needle but repels theN. pole. The laws of magnetic attraction and repulsionmay be stated as follows, viz.: (1) Magnet poles of the same name repel eachother; thus, a north pole repels another northpole, a south pole repels another south pole.
Electricity · Electrical engineering
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