Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 528
Circuit of Simple Electric Motor. position. The disk is mounted on a boss projecting fromthe inner side of the post concentric with the armatureshaft. The brushes are connected up by means of flexiblecord, or by a wire spiral, as shown in Figs. 485 and 493.The most favorable position for the…
Physics · Lantern projection · Electric apparatus and appliances
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