Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 576
armatures of dynamos more sluggish than theywould otiierwise be. INDUCTION COILS. 555 622. Induction coils. — If a core of iron, or, still better, abundle of wires (A A, Fig. 446), be inserted in the primary-coil, it is evident that it will be magnetized and demagnetizedevery time the primary is… … Fig. 446. intensifies the secondary current. To save the trouble ofmakiijg and breaking by hand, as in Fig. 438, the core is alsoutilized in the construction of an automatic make-and-breakpiece. A soft iron hammer, b, is connected with the steelspring, c, which is in turn connected with one of the…
Physics
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