Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 490
the first instance the current movintr in the wire o of the coil induced magnetism in the steel. In the secondinstance the movement of the magnetized steel within thecoil induced a current in the wire. The method of magnetizing a bar of steel is clearlyshown in Fig. 447, in which a is a helix of… … Induced Current from Induced Magnetism. By closing and opening the circuit while the steel bar is withinthe coil, as shown, the bar becomes instantl} magnetic.When the coil is disconnected from the battery and con-nected with a galvanometer, d, as shown in Fig. 448, and themagnet, b, is suddenly…
Physics · Lantern projection · Electric apparatus and appliances
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