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 96
wo circuits are entirely separate, as is the case with thearrangement of Fig. 79. Wlien the operator finds what numberthe subscriber wishes, she connects the ends d and e of his line withthe ends of the desired line by means of a flexible conducting cordwhich terminates in a metallic plug u,… … THE ELECTRIC CURRENT Electromotive Force. When a difference of electrical poten-tial exists between two points, there is said to exist an electrOmotive force^ or tendency to cause a current to flow from one pointto the other. In the voltaic cell one plate is at a different potentialfrom the other,…
Electrical engineering
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