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
to those of the iron rod inFig. 104, or if, without changing their direction, it iscarried to the other side of the wire|»t is repelled bythe combined tangential forces. 259. Fig. 104 illustrates the action of the forcesin producing attraction and repulsion. W repre-sents a horizontal section of… … passing through the poles.The forces which movethe magnet are tangentsto this circle, and theirdirections are indicated bythe arrows. It will beseen that the resultant ofthe forces, acting on eachpole, urges the centre ofthe magnet towards thewire. If the magnet be transferred to the positionN S^…
