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- Subject
- Oscillatorselectrical-engineering-mcqs › oscillators
- Published
- 19 Dec 2018
- Last updated
- 28 May 2026
Explanation
For oscillations to occur, the total phase shift around the feedback loop must be zero degrees (or an integer multiple of 360 degrees) to ensure constructive interference. Additionally, the loop gain should be equal to or greater than one. Options A, B, and D describe conditions that do not support sustained oscillations, whereas option C correctly identifies the required phase shift condition.
More Oscillators MCQs
Practice related questions from the same subject.
- 1.What type of oscillations does an ideal oscillator generate?
- 2.When the frequency of a crystal varies as the temperature changes, what type of temperature coefficient does the crystal exhibit?
- 3.Which type of frequency is unsuitable for generation using an LC oscillator?
- 4.In an LC transistor oscillator, which component acts as the active device?
- 5.What type of feedback is used in an oscillator circuit?
- 6.How many RC sections are typically employed in a phase shift oscillator circuit?
- 7.In which device is a crystal oscillator most commonly utilized?
- 8.An oscillator has an amplifier gain (Av) of 50. What should be the attenuation factor of the feedback network?
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