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 238
preponderance of chargein Cor C,. Change the ratio of B to Bn until no deflection occurs. Then, VC — V, C, or V, : V:\ C: Cr But we found V, : V :: R. : R or B,: B :: C : Cr and C,— C microfarads. Testing- Capacities hy Tord Kelvins Head-Beat, IVIiilti-•ellular Voltmeter. — Suitable for short… … Fig. 8. First close switch S on upper point 1, and charge JJ/Fand AC to a desiredpotential, V. Next move switch S from point 1 to lower point 2, and notethe potential V, at MV. Then Q = V(C + Ca) = V,(C+ Ca+ Cb), where Cis the capacity of volt-meter. Ordinarily Ccan be neglected, as compared with…
Electrical engineering
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