For the control system in the given figure, the value of K for critical damping is

1.

For the control system in the given figure, the value of K for critical damping is

23-207

[A].	1
[B].	5.125
[C].	6.831
[D].	10

Answer: Option B

Explanation:

43-207 since ζ = 1, ω_n = 3.5 Hence 2 + 2k = 3.5² = 12.25 or K = 5.125 .

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