Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 341
ositively andthe rubber negatively elec-trified. The charge on theglass is collected on suitableconductors and may be usedfor any desired purpose. One of the best formsof the friction machine isshown in Fig. 203. Pis theglass plate, which is elec-trified by revolving it be-tween the rubbers at… … ELECTBOPJHORUS. 331 285. Electrophorus. — The first of the induction machineswas invented by Volta in 1775. and is known as the electroph-orus. It consists of a metal plate.C (Fig. 204:), with an insulating [J handle, by which it may be raised or 0 Jl replaced on the base of the apparatus, Aj…
Physics
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