Elementary treatise on electricity and magnetism (1903)
Foster, George Carey, 1835-1919, Joubert, Jules François, 1834-1910. Traité élémentaire d'électricité, Porter, Alfred William, 1863- joint author · London, New York, Longmans, Green, and co. · leaf 398
is pur-pose is known as Weber-fInclinometer. 311. Measurement ofa Magnetic Field.—By means of the same method, and using a very small coil movable about an axis in ^ its plane, the intensity of a variable field in air may be measured. The plane of the coil, at first perpendicular to the direction… … Fig. 264. F- RQ 2S A measurement of the surface of the coil may be dispensedwith by observing the effect of suddenly reversing the coil in afield of known intensity, that of the earth, for example. 312. Measurement of the Normal Component at theSurface of a Magnet.— Suppose that a small coil is…
Electricity · Magnetism
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