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MMLU / The Barkhausen criterion for an oscillator

Problem

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question

The Barkhausen criterion for an oscillator

choices

  1. Loop gain should be unity
  2. Loop gain should be less than unity
  3. The phase of a feedback signal with respect to input should be 0° or 360°
  4. Both A and C

subject

electrical_engineering

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Source and history

Official source

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