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1. |
A dc shunt motor is running at 1000 rpm at the rated load torque. If we reverse the filed winding terminals, then |
A. | direction of rotation reverses and commutation will be unaffected |
B. | direction of rotation will be same and commutation will be unaffected |
C. | direction of ration reverses and commutation will be affected |
D. | direction of ration will be same and commutation will be affected |
Answer» B. direction of rotation will be same and commutation will be unaffected | |