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 400
ntact M, the electromotive force between M and Mmay be varied by steps of one-tenth of a volt, from 0 up to 1.5 volts.The wire D B is divided into 1100 equal parts. By moving thecontact point 1/ from 0 to 1100, the electromotive force between.M and M may be varied by infinitely small fractions of a… … Fig. C9. Diagram of Potentiometer Connections the fall of potential along A B. The contact points M and M arethen adjusted until the galvanometer shows that no current isflowing, when the value of the unknown electromotive force can beread from the position of the points M and M. In the diagram,the…
Electrical engineering
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