During the speed regulation process of the series resistance of the DC motor, if the load torque remains unchanged, it will remain unchanged_________
A. Input power
B. Output power
C. Electromagnetic power
D. The efficiency of the motor
Answer:A
During the speed regulation process of the series resistance of the DC motor, if the load torque remains unchanged, it will remain unchanged_________
A. Input power B. Output power C. Electromagnetic power D. The efficiency of the motor