Elementary lessons in electricity & magnetism (1895)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916 · New York and London, Macmillan and co. · leaf 24
Fig. 11. the electroscope it is attracted and turned round, and willthus indicate the presence of electric charges far too feebleto attract bits of paper from a table. 16. Gold-Leaf Electroscope. — A still more sensi- … Fig. u tive instrument is the Gold-Leaf Electroscope, inventedby Ben net, and shown in Fig. 12. We have seenhow two pith-balls when similarly electrified repel one chap, i GOLD-LEAF ELECTROSCOPE 17 another and stand apart, gravity being partly overcomeby the force of the electric repulsion. A…
Electricity
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