Electricians' operating and testing manual; a hand book for men in charge of electrical apparatus, repair men, trouble men, lamp trimmers, and electricians generally (1916)
Horstmann, Henry Charles, Tousley, Victor Hugo, 1875- joint author · Chicago, F.J. Drake & co · leaf 36
urecomes in contact with the cores the demagnetization isgreatly retarded as this helps increase the hysteresis,of which we shall speak later. A special form of magnet that is often used is dia-grammatically shown in Figure 17. In this formof magnet the armature A is continually under the… … the magnetism will also be reversed and the armaturethrown the other way. The end that before was at-traicted will now be repelled and the one that beforewas repelled will now be attracted. Under the influ-ence of an alternating current the armature will movein time with the current and cause the…
Electrical engineering · Electric testing
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