Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 45
Fig. 28. Kelvins Electrostatic Voltmeter. 32 SYMBOLS, UNITS, INSTRUMENTS. … Fig. 29. Another Form of LordKelvins Electrostatic Volt-meter. this fixed coil, and at right anglesthereto, is suspended a movable coilof few turns. A carefully woundhelical spring joins the movable coilto a torsion screw above the dial. Apointer on this torsion screw showson the dial the degrees…
Electrical engineering
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