Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 228
o x Fig. 224.—Representation of a lagging current. ) i E … Fig. 227.—The sum of two alternating voltages of the same frequency. ging according as it becomes a maximum before or after the vol-tage has reached its maximum value. 236. The Sum of Two Alternating Voltages of the SameFrequency.—If two direct-current generators are connected in 204 PRINCIPLES OF…
Electrical engineering
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