ISRO Electrical Engineering (EE) 2020 - Question 45

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What is the range of 'K' for which the unity feedback closed loop system with open loop gain G(s) = K / (s^2 (s + a)) will be unstable?

  • A. -a < K < a
  • B. K > 0
  • C. K = 0
  • D. -∞ < K < ∞

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