Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 484
pper to thelower disk of the electroscope (Fig.358) by an insulated wire, merelytouching it with the end of thewire, and the zinc to the upperdisk. Remove the wires, and liftthe top disk by the insulating han-dle. The leaves of the electroscopediverge. Prove by suitable test thatthe electrification… … Pig. 358. 464 ETHER DYNAMICS. When the upper plate is lifted, the capacity of the condenserdiminishes considerably, so that the small charge on the lower diskraises its potential so much that the gold leaves diverge. This will he understood from the equation V = ^ (§ 416); when the denomi- nator C…
Physics
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