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Which of the following is NOT an effect of addition of zeros on root locus?

Which of the following is NOT an effect of addition of zeros on root locus? Correct Answer System becomes oscillatory

Effect of addition of zeroes:

  1. The system becomes more stable
  2. Relative stability improves
  3. Range of K for stability increases.
  4. The system becomes less oscillatory
  5. Breakaway point shifts towards the left in s plane.
  6. Damping factor increases.

Effect of addition of Poles:

  1. Operating range of k decreases.
  2. Relative stability reduces
  3. The system becomes more oscillatory
  4. Breakaway point shifts towards the imaginary axis
  5. damping factor decreases.

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