A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 389
ties, and are rigidly connected to-gether by means of the axis a, a. So disposed,the two magnets act as a very weak single needlewhen placed in a magnetic field. Were the two magnets N S, and S N, of ex-actly equal strength, with their poles placed inexactly the same vertical plane, they would… … a-* Fig. 402. Astat c Needle. needle has a directive tendency, which is ofteneast and west. The cause of the east and west directive ten-dency of an unequally bal-anced astatic system willbe understood from an in- ,spection of Fig. 403. Un- ^-fjgcless the two needles, N S,and S N, are exactly op-…
Electricity · Electrical engineering
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