A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 971
ecarrying the conductors is insulated byan ebonite plug. The leaves are sur-rounded by the brass box A, having acircular window through which they areobserved by a short-focus telescopehaving a finely divided scale in theeyepiece. The position of the image of the leaf on the eyepiecescale indicates… … Fig. 882.—The Wilson electroscope. QUADRANT ELECTROMETER 947 Quadrant electrometer.—For accurate measurement of small>otentials the quadrant electrometer is much superior to the gold-eaf electroscope. This consists of four hollowuadrants AABB (Fig. 883) with a paddle-haped conductor C (sometimes…
Physics
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