International Library of Technology · Scranton, International Textbook Co. · leaf 248
to the circuit varies with theE. M. F. and current. It should be noticed that in this case CURRENT APPARATUS. 2621 (current and E. M. F. in phase)_the power curve lies whollyabove the horizontal; that is, the work is all positive, or, inother words, power is being supplied to the circuit. Thiswould… … Pig. 1488. The power curve is here constructed as before, but it isno longer wholly above the horizontal. The ordinate/^of the current curve is positive, while at the same instantthat of the E. M. F. curve _/ ^ is negative, consequently
Electrical engineering
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