International Library of Technology · Scranton, International Textbook Co. · leaf 179
erminalsat t and /. The coil C is called the calibrating coil. Onthe iron ring /and also at the center of the length on thecoil C are wound induction-coils, or secondary coils, consist-ing of a few turns of insulated wire. As the dimensions of the coil C and the current passingthrough the coil are… … Fig. 991. the setting up of a certain number of lines of force inthe wooden core of C will cause the needle of the ballisticgalvanometer G to give a certain kick. By varying themake and break currents, the ballistic galvanometer G maybe calibrated, so that the kick of the galvanometer G beinggiven,…
Electrical engineering
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