Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 56
l it creates such a difference in the waterlevels between C and D that the back pressure against the left face ofthe wheel stops it and brings the weight W to rest. In precisely thesame way, the chemical action within the galvanic cell whose termi-nals are not joined (Fig. 43) develops positive and… … Fig. 42. Hydrostatic Analogy of Potential Difference. 44 ELECTRICITY AND MAGNETISM 35 Now, if the water reservoirs (Fig. 42) are put in communicationby opening the stop-cock A, the difference in level between C and D willbegin to fall, and the wheel will begin to build it up again. But ifthe…
Electrical engineering
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