A.C. series motor as compared to D.C. series motor has__________?
A. smaller brush width
B. less number of field turns
C. more number of armature turns
D. less air gap
E. all of the above
A. smaller brush width
B. less number of field turns
C. more number of armature turns
D. less air gap
E. all of the above
A. pulsating
B. uniform
C. none of the above
D. nil
A. shunt motor
B. series motor
C. compound motor
D. separately excited motor
A. spark excessively
B. have poor efficiency
C. have poor power factor
D. all of the above
A. damage to the starting winding
B. damage to the centrifugal switch
C. overloading of running winding
D. none of the above
A. thin wire placed at the top of the slots
B. thin wire placed at the bottom of the slots
C. thick wire placed at the bottom of the slots
D. thick wire placed at the top of the” slots
A. improves the efficiency
B. helps the rotor teeth to remain under the stator teeth
C. helps in reducing the tendency of the rotor teeth to remain under the stator teeth
D. improves the power factor