Electricity experimentally and practically applied; a book for the beginner and for the practical man, principles, experiments, practical applications and problems (1910)
Ashe, Sydney Whitmore · New York, D. Van Nostrand company · leaf 359
at a definiterate as they are consumed.When burning upon directcurrent, the positive car-bon, which is the upperone, burns away twice asrapidly as the negative car-bon. It is therefore ob-vious that the mechanismmust feed the positive car-bon twice as rapidly as thenegative carbon. Whenusing… … FlG. 419. — Automatic Arc Lamps. 338 APPENDIX changeable gears so that it can be used either on direct or alternatingcurrent. For instance, as the gears are set on cut, the lamp is arrangedfor direct current. If, however, it is desirable to use alternating current,
Electricity · Electrical engineering
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