A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 802
magnet NS near, and on a levelwith the upper pole A, the force on this will be much greater thanthat acting upon the lower pole B. If A be a N pole, it will, onstarting near N of the bar magnet, be driven along a curved path,and eventually reach S. Thus, at each point of its path it ex-periences a… … Fig. 714.—Experiment to illustratemagnetic flsld. 778 MAGNETISM AND ELECTRICITY CHAP. the other on its S pole in the opposite direction. These in generalform a couple (Fig. 723) tending to twist it into the direction of themagnetic field, but when it attains this direction, the couple becomeszero…
Physics
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