Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 336
eing a maximum when the current is amaximum and zero when the current is zero, but the average Art. 340] SINGLE-PHASE MOTORS 311 torque is the same as would be produced by a direct current ofthe same magnitude. Since the magnetic flux in the poles is alternating, the fieldstructure must be…
Electrical engineering
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