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 1032
B, — … Fig. 948.—Duplex telegraph (Wheatstones bridge). The bridge method is employed for submarine cables. At one stationthe battery Bt (Fig. 948) is connected by means of the key to onecorner, Al5 of a Wheatstones bridge. The four arms of the bridgeare Pl5 Q,v the line L, and the resistance Rx. IUUS…
Physics
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