Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 612
each other. An Edison 16 (ia.ndle-power lamp has a resistance (whenhot) of about 140 ohms, the difEerence of potential at itsterminals is about110 volts, and itrequires a currentof 0.75 ampere.Each lamp con-sumes about one-tenth of a horse-power. Incandescentlamps are usuallyintroduced into the… … Pig. 480. > A watt of electrical actirity corresponds to ^i, h.p. of mechanical aotirity;hence, if a lamp or motor take activity equivalent to 7I5 h.p. for one hour, it con-sumes one watt-hour of energy, or 3600 joules. It has been found that an incandescent lamp consuming 1000 watt-hours of…
Physics
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