The outlines of physics: an elementary text-book . 1 For a full discussion of the voltaic cell and for a description of numer-ous forms to which no reference is made here, see Carhart, Primary Bat-teries ; see also Elements of Physics, Vol. II, Chap. Fig. 231. MAGNETIC EFFECTS OF THE CURRENT 271 CHAPTER XXVII THE MAGNETIC EFFECTS OF THE CURRENT 237. Preliminary Observations concerning the MagneticEffect of the Current. — If several cells of the bichromatebattery described in Art. 237 be placed in series, and theterminals of the battery thus formed be connected bymeans of a copper wire, a s
The outlines of physics: an elementary text-book . 1 For a full discussion of the voltaic cell and for a description of numer-ous forms to which no reference is made here, see Carhart, Primary Bat-teries ; see also Elements of Physics, Vol. II, Chap. Fig. 231. MAGNETIC EFFECTS OF THE CURRENT 271 CHAPTER XXVII THE MAGNETIC EFFECTS OF THE CURRENT 237. Preliminary Observations concerning the MagneticEffect of the Current. — If several cells of the bichromatebattery described in Art. 237 be placed in series, and theterminals of the battery thus formed be connected bymeans of a copper wire, a strong current of electricitywill flow through this wire from the positive to the nega-tive terminal of the battery. If this wire passes througha hole in the center of a flat block of wood,as shown in Fig. 232, and if the upper sur-face of the block which should previouslyhave been covered with glazed paper or card-board be strewn with fine iron filings, thesewill be seen to arrange themselves in con- centric circles, with the axis of the wire as a \ ?^(^;^; \center. Figure 233,from a photo-ihows the ar-rangement of iron fil- SSS6 • • 1, „ Fig- 232. J;gg mgs m such a Each particle of iron in the neigh-??^^S0:^^^^^^^^is^%l bo
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectphysics
