International Library of Technology · Scranton, International Textbook Co. · leaf 143
each particular case. LOIVG-RANGE MAGNEXS. 2436. The most economical form of long-range mag-nets is the coil-and-plunger magnet; that is, a magnetin which a part or the whole of the armature moves insidethe magnetizing coils. The simplest, although the most in-efficient, type of such magnets is a… … The range of action is long, but the force exerted is comparatively weak. Fig. 964 represents an effective type of coil-and-plunger 1578 PRINCIPLES OF magnet, and one capable of exerting heavy pulls throughlong ranges. The magnetic circuit is divided at about thecenter of the coils c, c, and half…
Electrical engineering
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