Question

A proportional controller leads to:

(a) Zero steady state error for step input for type 1 system

(b) Zero steady state error for step input for type 0 system

(c) Infinite steady state error for step input for a type 1 system

(d) Finite steady state error for step input for type 1 system

The question was posed to me by my school teacher while I was bunking the class.

I'd like to ask this question from Cascade Compensation in Time Domain in section Design of Control Systems

Answer 1

Right option is (a) Zero steady state error for step input for type 1 system

To explain I would say: A proportional controller is the controller block used in the system so as to follow the output and leads to zero steady state error for step input for type 1 system.