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For an RC phase shift oscillator, the following statements are cited:
a) Amplifier gain is negative
b) Phase shift introduced by the feedback circuit is either 0 or 360°
c) Amplifier gain is positive
d) Phase shift introduced by the feedback circuit is 180°
Which of the following options is correct?
  • a)
    Only a) is correct and rest are incorrect
  • b)
    Only c) is correct and rest are incorrect
  • c)
    Both a) and d) are correct
  • d)
    Both b) and c) are correct
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
For an RC phase shift oscillator, the following statements are cited:a...
RC phase shift oscillator:
  • RC phase shift oscillator as shown in the figure is used to invert the input for a 180° phase difference. Hence, the gain of the RC phase shift oscillator is negative. (Statement 1 is correct and 3 is incorrect)
  • The single R-C network gives the 60° phase shift. Hence the total phase shift provided by the feedback network is 1800(Statement 2 is incorrect and 4 is correct)
  • In the RC phase shift oscillator, the inverting amplifier produces a 180° phase shift.
  • The RC Phase shift Oscillator: has a fixed frequency and is used at lower frequencies 
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Community Answer
For an RC phase shift oscillator, the following statements are cited:a...
A) The statement is incorrect. In an RC phase shift oscillator, the amplifier gain is positive. This positive gain compensates for the attenuation introduced by the RC network in the feedback path, allowing the circuit to sustain oscillations.

b) The statement is correct. In an RC phase shift oscillator, the feedback circuit typically consists of a series of RC networks. Each RC network introduces a phase shift of approximately 60 degrees. Since there are 3 RC networks in the feedback path, the total phase shift introduced is 180 degrees. In addition, the amplifier itself introduces another 180 degrees of phase shift, resulting in a total phase shift of 360 degrees. This ensures positive feedback and oscillation.
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For an RC phase shift oscillator, the following statements are cited:a) Amplifier gain is negativeb) Phase shift introduced by the feedback circuit is either 0 or 360°c) Amplifier gain is positived) Phase shift introduced by the feedback circuit is 180°Which of the following options is correct?a)Only a) is correct and rest are incorrectb)Only c) is correct and rest are incorrectc)Both a) and d) are correctd)Both b) and c) are correctCorrect answer is option 'C'. Can you explain this answer?
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For an RC phase shift oscillator, the following statements are cited:a) Amplifier gain is negativeb) Phase shift introduced by the feedback circuit is either 0 or 360°c) Amplifier gain is positived) Phase shift introduced by the feedback circuit is 180°Which of the following options is correct?a)Only a) is correct and rest are incorrectb)Only c) is correct and rest are incorrectc)Both a) and d) are correctd)Both b) and c) are correctCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about For an RC phase shift oscillator, the following statements are cited:a) Amplifier gain is negativeb) Phase shift introduced by the feedback circuit is either 0 or 360°c) Amplifier gain is positived) Phase shift introduced by the feedback circuit is 180°Which of the following options is correct?a)Only a) is correct and rest are incorrectb)Only c) is correct and rest are incorrectc)Both a) and d) are correctd)Both b) and c) are correctCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For an RC phase shift oscillator, the following statements are cited:a) Amplifier gain is negativeb) Phase shift introduced by the feedback circuit is either 0 or 360°c) Amplifier gain is positived) Phase shift introduced by the feedback circuit is 180°Which of the following options is correct?a)Only a) is correct and rest are incorrectb)Only c) is correct and rest are incorrectc)Both a) and d) are correctd)Both b) and c) are correctCorrect answer is option 'C'. Can you explain this answer?.
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