Question

Time constant is the measure of

a. Response of the system

b. Dislocation of the system from the desired value. c. Adjustment of the system for a given disturbance in the output d. Describes the resistance of the system

Answer 1

Time constant is the measure of

a. Response of the system

Physically, the time constant represents the elapsed time required for the system response to decay to zero if the system had continued to decay at the initial rate, because of the progressive change in the rate of decay the response will have actually decreased in value to 1 / e ≈ 36.8% in this time.