Electrical time-constant of an armature-controlled dc servomotor is :
A. Equal to mechanical time-constant
B. Smaller than mechanical time-constant
C. Larger than mechanical time-constant
D. Not related to mechanical time-constant
Answer:B
Electrical time-constant of an armature-controlled dc servomotor is :
A. Equal to mechanical time-constant B. Smaller than mechanical time-constant C. Larger than mechanical time-constant D. Not related to mechanical time-constant
Explanation: Electrical time constant is smaller than the mechanical time constant and hence the delay in the mechanical systems is more than the electrical systems.