Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 238
h I, seeabove. A vector Ex = IX is drawn to scale in such a direction that Ilags Ex by 90 degrees, see page 207. Art. 24(5] INDUCTIVE CIRCUITS 213 Then E = the vector sum of Er and Ex = <e2 +1& = ^T(IR)2 + (IX)2 = I ^Ir2 + X2 The current now lags the applied voltage by an angle a, asshown by… … —E-x- -E^ -r-^tfuW^-A/W—i X
Electrical engineering
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