ISRO Electrical Engineering (EE) 2018 - Question 1

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For the system to be stable, in a negative feedback systems, with increase of feedback loops the range of gain (K)

  • A. Reduces
  • B. Increases
  • C. Does not change
  • D. Exponentially increases

Answer: A. Reduces

Explanation: Adding more feedback loops tends to make the system harder to stabilise, so the permissible gain range reduces.

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