Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 497
Induction in an Iron Ring. polarity of the ring maintainsthe poles of the magnet. When the ring carries a coil, as shown in Fig. 461, themagnetic poles of the ring remaining stationary while thematerial of the ring and coil are revolved, there is a contin-ual passing of the sections of the coil… … Armature in Magnetic Field. magneticbar through the coil of thearmature. The principal inductiveeffect is produced by thepassing of the conductorthrough the magnetic field of the inducing magnet. Eachhalf of the armature between the neutral points is practi-cally a single coil of wire, terminating…
Physics · Lantern projection · Electric apparatus and appliances
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