International Library of Technology · Scranton, International Textbook Co. · leaf 84
. The common form of artificial magnets is a bar of steelbent into the shape of a horseshoe and then hardened andmagnetized. A piece of soft iron called an armature, orkeeper, is placed across the two free ends, which helps toprevent the magnet from losing its magnetism. 2361. If a bar magnet is… … Fig. 918. That part of the magnet where there is no apparent mag-netic attraction is called the neutral line, and the partsaround the ends where the attraction is greatest are calledpoles. An im^aginary line drawn through the center of themagnet from end to end, connecting the two poles together,is…
Electrical engineering
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