Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 182
ng, and the needlebelow the magnet is drawn over, indicating which push-button was operated. 206. The Automatic Arc Lamp. — The automatic arclamp, which is used principally to light our streets and largefactory buildings, is an application of the electro-magnet. This principle is usedautomatically… … Figure 172.—Wiring Diagram of anAutomatic Arc Lamp. 172 MAGNETIC EFFECT OF CURRENT The current flows from the line into coil Ci (Figure 172),and then divides. One part goes to the upper carbon, andthe other part goes to the coil C2. When the lamp is not lighted, the upper carbon fallsdown and…
Physics
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