Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 437
om one carbon to the other with eachreversal of current, so that both carbons are con-sumed equally when the rods are horizontal.When vertical, the upper carbon will be con-sumed about eight per cent faster, owing to theaction of the ascending currents of heated air. 376. Arc Lamp Regulation.—After… … Fig. 3 Single CarbonAutomatic FeedArc Lamp. The arc is ex-pospd to the airand the lamptrimmed nightly. ELECTRIC LIGHTING. 419 goes out; to light it again the carbons must be brought intocontact and then separated. In an automatic feeding lamp thecarbons are moved together automatically as they are…
Electricity · Magnetism
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