Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 611
Fig. 477. 590 ETHEK DYNAMICS. … Fig. 478. Inside the bobbin is a soft iron core, F, which is attached tothe upper carbon. When a current passes through the twoG branch circuits on the bobbin C, theytend to magnetize the core in op-posite directions, but the resistancesand number of turns in the two cir-cuits are so proportioned…
Physics
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