Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 499
ividedup into a large number of sections. MAGNETO-ELECTRIC MACHINES. It has been already shown that it makes no material dif-ference in the result whether a magnetized steel bar is intro-duced into the coil, as in Fig. 448, or whether the coil is pro-vided with a soft iron core capable of being… … soft iron core, and is connected with the galvanometer, B.By placing the poles of a permanent horseshoe magnet incontact with the projecting ends of the soft iron core of thecoil, the core instantly becomes a magnet by induction, anda current is set up in the coil in the same manner as in theformer…
Physics · Lantern projection · Electric apparatus and appliances
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