Response time for 50% steady state in second order system

Q.  What will be the value of the time required by the response to reach 50% of its steady state value for second order system?
- Published on 07 Oct 15

a. π – θ /ωd
b. π / ωd
c. 4 / ξ ωn
d. (1+ 0.7 ξ) /ωn

ANSWER: (1+ 0.7 ξ) /ωn

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