The open loop poles of a third order unity feedback system are at 0,-1,-2. Let the frequency corresponding to the point where the root locus of the system transits to unstable region be K. Now suppose we introduce a zero in the open loop transfer function at -3, while keeping all the earlier open loop poles intact. Which one of the following is TRUE about the point where the root locus of the modified system transits to unstable region?
  • a)
    It corresponds to a frequency greater than K
  • b)
    It corresponds to a frequency less than K
  • c)
    It corresponds to a frequency K
  • d)
    Root locus of modified system never transits to unstable region
Correct answer is option 'D'. Can you explain this answer?

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This discussion on The open loop poles of a third order unity feedback system are at 0,-1,-2. Let the frequency corresponding to the point where the root locus of the system transits to unstable region be K. Now suppose we introduce a zero in the open loop transfer function at -3, while keeping all the earlier open loop poles intact. Which one of the following is TRUE about the point where the root locus of the modified system transits to unstable region?a)It corresponds to a frequency greater than Kb)It corresponds to a frequency less than Kc)It corresponds to a frequency Kd)Root locus of modified system never transits to unstable regionCorrect answer is option 'D'. Can you explain this answer? is done on EduRev Study Group by Electrical Engineering (EE) Students. The Questions and Answers of The open loop poles of a third order unity feedback system are at 0,-1,-2. Let the frequency corresponding to the point where the root locus of the system transits to unstable region be K. Now suppose we introduce a zero in the open loop transfer function at -3, while keeping all the earlier open loop poles intact. Which one of the following is TRUE about the point where the root locus of the modified system transits to unstable region?a)It corresponds to a frequency greater than Kb)It corresponds to a frequency less than Kc)It corresponds to a frequency Kd)Root locus of modified system never transits to unstable regionCorrect answer is option 'D'. Can you explain this answer? are solved by group of students and teacher of Electrical Engineering (EE), which is also the largest student community of Electrical Engineering (EE). If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for Electrical Engineering (EE) on EduRev and even discuss your questions like The open loop poles of a third order unity feedback system are at 0,-1,-2. Let the frequency corresponding to the point where the root locus of the system transits to unstable region be K. Now suppose we introduce a zero in the open loop transfer function at -3, while keeping all the earlier open loop poles intact. Which one of the following is TRUE about the point where the root locus of the modified system transits to unstable region?a)It corresponds to a frequency greater than Kb)It corresponds to a frequency less than Kc)It corresponds to a frequency Kd)Root locus of modified system never transits to unstable regionCorrect answer is option 'D'. Can you explain this answer? over here on EduRev! Apart from being the largest Electrical Engineering (EE) community, EduRev has the largest solved Question bank for Electrical Engineering (EE).
This discussion on The open loop poles of a third order unity feedback system are at 0,-1,-2. Let the frequency corresponding to the point where the root locus of the system transits to unstable region be K. Now suppose we introduce a zero in the open loop transfer function at -3, while keeping all the earlier open loop poles intact. Which one of the following is TRUE about the point where the root locus of the modified system transits to unstable region?a)It corresponds to a frequency greater than Kb)It corresponds to a frequency less than Kc)It corresponds to a frequency Kd)Root locus of modified system never transits to unstable regionCorrect answer is option 'D'. Can you explain this answer? is done on EduRev Study Group by Electrical Engineering (EE) Students. The Questions and Answers of The open loop poles of a third order unity feedback system are at 0,-1,-2. Let the frequency corresponding to the point where the root locus of the system transits to unstable region be K. Now suppose we introduce a zero in the open loop transfer function at -3, while keeping all the earlier open loop poles intact. Which one of the following is TRUE about the point where the root locus of the modified system transits to unstable region?a)It corresponds to a frequency greater than Kb)It corresponds to a frequency less than Kc)It corresponds to a frequency Kd)Root locus of modified system never transits to unstable regionCorrect answer is option 'D'. Can you explain this answer? are solved by group of students and teacher of Electrical Engineering (EE), which is also the largest student community of Electrical Engineering (EE). If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for Electrical Engineering (EE) on EduRev and even discuss your questions like The open loop poles of a third order unity feedback system are at 0,-1,-2. Let the frequency corresponding to the point where the root locus of the system transits to unstable region be K. Now suppose we introduce a zero in the open loop transfer function at -3, while keeping all the earlier open loop poles intact. Which one of the following is TRUE about the point where the root locus of the modified system transits to unstable region?a)It corresponds to a frequency greater than Kb)It corresponds to a frequency less than Kc)It corresponds to a frequency Kd)Root locus of modified system never transits to unstable regionCorrect answer is option 'D'. Can you explain this answer? over here on EduRev! Apart from being the largest Electrical Engineering (EE) community, EduRev has the largest solved Question bank for Electrical Engineering (EE).