Willoughby, George Alonzo, 1894- · Peoria, Ill. : Manual Arts Press · leaf 95
hoiu^ at $1.00 per hour, he will get $1.00 x 2, or $2.00, while hewould get $5.00 if he should work five hours. Likewise, time must be taken into consideration in calcu-lating the value and cost of electrical power. The unit mostcommonly used is the kilowatt-hour, which, as the name indi-cates, is… … Fig. 57. Common kilo-watt-hour meter. Thismeter is usually placednear the entrance switchin house installations. multiplying the number of kilowatts being used by the num-ber of hours used; that is, if ten 100-watt lamps are usedfrom 8 oclock until 10 oclock, thenumber of kilowatt-hours wouldbe 10…
Electricity · Electrical engineering
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