Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 235
s upon Magnetic Substances.—Amagnetic substance when brought near to a magnet is itselfalways polarized—that is, converted into a magnet. Theharder the substance the less this action takes place ; but,on the other hand, the more permanent is the result. Softiron is readily magnetized and as readily… … Fig. 116.—Horseshoe magnet polarizing soft iron iron, as carpet tacks, will cling to it. With a magneticneedle we may learn that the bar of soft iron is polarized sothat its north pole is opposite the southpole of the horseshoe magnet, and its southpole opposite the north pole of the mag-net. As…
Physics
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