Electricity and magnetism : an elementary text-book, theoretical and practical (1920)
Glazebrook, Richard, Sir, 1854-1935 · Cambridge : The University press · leaf 19
Fig. 3. Fig. 4. Two pith balls are connected by a linen or cotton threadand suspended from a glass support. Cotton or linen is usedbecause it is a conductor so that any charge communicated to 10 ELECTRICITY [CH. I either ball is shared by the other. Tf the two balls becomeelectritied they repel…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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