Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity (1854)
Davis, Daniel · Boston : Palmer and Hall · leaf 180
wire. 260. When the poles are at different distancesfrom the wire, the resultant of the tangential forces „. ^^^ moves the magnet Fig. 105. , , , obliquely towards the wire, until itscentre comes intocontact with it. Ifthere are two cur-rents moving inopposite directions,•W one on each side of the… … 164 DAVISS MANUAL. in which the current is ascending, and W one inwhich it is descending. The four small arrowsindicate the tangents to the circles, drawn as in Fig104, from W and W as centres. At the south poleof the bar, the direction of the forces is nearly oppo-site, and they neutralize each…
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