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In case of speed control by injecting e.m.f. in the rotor circuit is possible.
slip ring induction motor
shunt motor
dc series motor
synchronous motor
slip ring induction motor
Quick Summary: Practice and solve "In case of speed control by injecting e.m.f. in the rotor circuit is possible...." for Electrical - Electric Drives. The correct answer is Option A: slip ring induction motor. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(a) **