Question

The current response of a network to a unit step input is Io(s) = 10(s + 2)/s(s^2 + 11s + 30). The response is

(a) Under damped

(b) Over damped

(c) Critically damped

(d) None of the mentioned

The question was asked in an interview.

The above asked question is from Circuit analysis in S domain in portion EDC Overview of Electronic Devices & Circuits

Answer 1

The correct answer is (b) Over damped

For explanation I would say: The roots are real and unequal (-6, -5) for the characteristic equation. Hence it is over damped.