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
Fig. 9.as shown. This is virtually a Wheatstone bridge, in which one of the wires,71, is one of the arms of same. Adjust r until a (x -f- y) = br, when r will beequal to x + y, if a = 6. d … 226 CABLES. Next connect the battery to line m instead of to earth, as in Fig. 10, andadjust a until ax = by. Then -4-=^- and as x + y =: r in the first arrangement, , b X r hence, x = ^—; & -f a This test may be varied by transposing G and the battery, in Fig. 9, whichis the old method of…
Electrical engineering
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