Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 375
^ magnetizedneedle. The soft iron bar is freely suspended, and receivesits magnetism from the fixed magnet. The end of the sus-pended bar adjacent to the N pole of the magnet becomesS, as may be shown by presenting to it the S pole of anotherpermanent magnet. The S end of the swinging bar will be … Neutralizing Effect of an Opposing Pole. immediately repelled. If the S end of the permanent mag-net be presented to the opposite end of the suspended bar,the reverse of what has been described will take place, i. c,that end of the bar will be attracted, showing that its polar-ity is N. In Fig. 337…
Physics · Lantern projection · Electric apparatus and appliances
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