Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 467
point in i, a, 2 there is a point in \, b, 2 havingthe same potential. If these two points of equal potentialbe joined by a conductor, no current will pass through the Fig. 432. … Bridge Resistance Box conductor. In the diagram the points of equal potentialare marked a, b, and they are connected by a conductorin which is inserted a galvanometer. A, B, and Care known resistances, and D is the unknownresistance. When A : B : : C : D, the galvanometerneedle will stand at o. The…
Physics · Lantern projection · Electric apparatus and appliances
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