Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 140
. It dependsfor its action upon the force of attraction or repulsion exertedbetween coils carrying a current. It consists of six coils two ofwhich A A in Fig. 12 are movable, and four, B B B B are fixed. 121 20 ELECTlilCAL MEASUREMENTS. The movable coils may be considered as the scale pans of a…
Electrical engineering
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