Elementary treatise on electricity and magnetism : (1905)
Foster, G. C. (George Carey), 1835-1919, Joubert, J. (Jules François), 1834-1910, Porter, Alfred W. (Alfred William), 1863-1939 · London ; New York ; Bombay : Longmans, Green, and Co. · leaf 302
agnetic induction, thus correspond to analogous ideas.204. Magnetic Screens.—If a hollow block of iron be placedin a magnetic held, the perturbation of the lines by the iron issuch as to make the field within the cavity less intense than theundisturbed field. In the case of a hollow cylinder placed… … Fig. 177. plane of the paper) is supposed constant. The reciprocal of theirdistance apart at any place is therefore a measure of the intensityof induction there. The figure represents the case where the per-meability is 100. It will be seen that the two dotted lines of in-duction which lie close to…
Electricity · Magnetism
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