Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 476
e bent down-ward before reaching the sleeves, and the mercury cups areplaced so as to receive their lower ends. Cords or smallchains are attached to the angles of the wires and wrapped DYNAMIC ELECTRICITY. 453 once around the sleeves and attached to the springs.This instrument, placed directly in… … Ammeter, circuit and the expansion wire of the scale is placed in theother circuit. In a delicate instrument of this kind the ten-sion of the expansion wires should be only sufficient to keepthe wires taut, as they are readily stretched when consider-ably heated. AMMETER. The instrument shown in…
Physics · Lantern projection · Electric apparatus and appliances
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