Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 53
alogy lends itself most readily toillustrate many of the phenomena in an electric circuit, itwill be the one most used in this and future cliapters. In Fig. 42 is shown a centrifugal pump with the suctionand discharge connected with a pipe and the system filledwith water. If a valve V is placed in… … FiG. 43 Fig. 44 Figs. 42 to 44.—Compare electric pressure to pressure iu a pump. pressed, a tendency for the water to flow, just the same as apressure is created between the copper and zinc plates in thevoltaic cell. Fig. 43. As long as the plates are not connectedexternally, an electric current…
Electric machinery
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