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  • Test 1 - Control System | Electronics and Communication (ECE)
  • The open-loop transfer function of a unity-gain feedback ...
Multiple choice

The open-loop transfer function of a unity-gain feedback control system is given by

G (s) = $$\dfrac{k}{(s+1)(s+2)}$$

The gain margin of the system in dB is given by

  1. 0

  2. 1

  3. 20

  4. $\infty$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Given system is 2nd order and for 2nd order system, G.M. is infinite.

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