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What is the disadvantage of the speed control of slip-ring induction motor with the help of resistances in the rotor circuit ? | |
A. | By using this method the speed can be easily controlled [Wrong Answer] |
B. | This method is associated with high losses [Correct Answer] |
C. | With reductions in torque the speed decreases considerably [Wrong Answer] |
D. | None of the above [Wrong Answer] |