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 100
der to bal-ance the above-mentioned force; or (b)by allowing the force to turn the mov-able coil, thus moving a pointer over adivided scale. In the Siemens electro-dynamometer method (a) is used; while /in many commercial forms of electrody- n^^?namometer method (b) is used. ^*- ^- The essential… … Dial of Siemens Elertro-dynamometer 83 74 ALTERNATING-CURRENT MACHINERY the movable coil B is hung by a thread, the plane of coil B beingat right angles to the plane of coil A. The terminals of the mov-able coil dip into cups of mercury a a, and the current to bemeasured is sent through both coils…
Electrical engineering
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