A. frequency
B. rotor inductive reactance
C. square of supply voltage
D. all of the above
A. slip ring type
B. squirrel cage type
C. any of the above
D. none of the above
A. self-starting with zero torque
B. self-starting with high torque
C. self-starting with low torque
D. non-self starting
A. resistance is inserted in the stator
B. reduced voltage is applied to the stator
C. resistance is inserted in the rotor
D. applied voltage perl stator phase is 57.7% of the line voltage
A. efficiency
B. power factor
C. frequency
D. output
A. the magnetising current of the rotor will decrease
B. the power factor will decrease
C. speed of motor will increase
D. the windage losses will increase
A. 4% in the rotor torque
B. 8% in the rotor torque
C. 12% in the rotor torque
D. 16% in the rotor torque