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The addition of open loop zero pulls the root loci towards:
  • a)
    The left and therefore system becomes more stable
  • b)
    The right and therefore system becomes unstable
  • c)
    Imaginary axis and therefore system becomes marginally stable
  • d)
    The left and therefore system becomes unstable
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The addition of open loop zero pulls the root loci towards:a)The left ...
Answer: a
Explanation: The system can become stable by reducing the damping and also by adding zeroes in the s plane and moving left of the s plane system becomes more stable.
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Most Upvoted Answer
The addition of open loop zero pulls the root loci towards:a)The left ...
Explanation:
The addition of open loop zeros affects the root locus plot of the system. The root locus plot is a graphical representation of the locations of the closed-loop poles as a function of a system parameter (typically the gain of the system). The addition of open loop zeros pulls the root locus towards the left-hand side of the s-plane.

Reasons for the system becoming more stable:
• The left-hand side of the s-plane corresponds to stability, and as the root locus moves towards the left, the system becomes more stable.
• The addition of open loop zeros reduces the overshoot and settling time of the system, which makes it more stable.
• Open loop zeros provide additional damping to the system, which reduces the oscillations and improves the stability of the system.

Conclusion:
Hence, the correct answer is option 'A' - The addition of open loop zeros pulls the root locus towards the left-hand side of the s-plane and therefore the system becomes more stable.
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The addition of open loop zero pulls the root loci towards:a)The left and therefore system becomes more stableb)The right and therefore system becomes unstablec)Imaginary axis and therefore system becomes marginally stabled)The left and therefore system becomes unstableCorrect answer is option 'A'. Can you explain this answer?
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