A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 260
nal to the sineof the angle measured on this circle, throughwhich it is necessary to move the coil M, from its position when the needle is at rest in the plane ofthe earths magnetic meridian, until the needleis not further deflected by the current, althoughparallel to the coil M. —An instru-… … Fig. 277. Tangent Galvanometer. A galvanometer acts as a tangent galvanometeronly when the needle is very small as comparedwith the diameter of the coil. The length of theneedle should be less than one-twelfth the diameterof the coil. A form of tangent galvanometer is shown inFig. 277. The needle…
Electricity · Electrical engineering
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