Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 382
FiQ. 451.— Field of force of a bar-majjnet. while Fig. 452 shows it about similar poles of two bar-magnets standing on end. The magnetic force,as we have seen, isgreatest in the neigh-bourhood of the poles,and here the curvesshown by the filingsare closest together.Thus the direction ofthe curves… … Fio. 452.—Field of force of two like poles. 372 MAGNETISM 1^ ^^gjjSSSm >■■ ■-->•- There are several ways of making these filings figures per-manent. Some photographic process gives the best results, but aconvenient way is to produce the figures on paper which has beendipped in melted…
Physics
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