Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 131
ed Pressure.—In Fig. 128 con-sider the bridge balanced; that is, the voltage between points( and D at zero. In Fig. 129, in order that the pressure in thepipes shall be the same at point B it will be necessary to havethe same drop in each pipe between A and B; that is, thereis 5 lb. drop in No. 1,… … Fig. 129.—Hydraulic analogy of balanced pressure. In Fig. 128 as in Fig. 129, in order that no current shallflow tlirough the galvanometer the volts drop from B to Cmust be equal to the volts drop from B to D. Therefore, thedrop from C to A will equal that from D to A. The volts dropacross any…
Electric machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
