The outlines of physics: an elementary text-book (1897)
Nichols, E. L. (Edward Leamington), 1854-1937 · New York, The Macmillan Company; London, Macmillan & Co., Ltd. · leaf 306
ich is placed in the axis of acoil of wire, and is therefore de-flected from its north and soilthposition whenever a currentflows through the coil. Thecoil of wire may consist of oneor many turns, according to thestrength of the current to bemeasured. For the measure-ment of large currents,… … Fig. 255. 292 THE OUTLINES OF PHYSICS Fig. 256. H to the current, the coil is of considerable size, from 20 to100 cm. in diameter. In many cases, as in that of the in-strument selected for illustration, two coils are used, andthe needle is placed midway between them in their commonaxis. The needle…
Physics
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