Oscillator Multiple Choice Questions And Answers


31. Gain stability in an oscillator can be achieved by


   A.Using low-Q circuits

   B.Providing positive feedback

   C.Providing negative feedback

   D.Controlling the gain


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D.Controlling the gain

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32. Which of the following is the main advantage of using oscillators?


   A.Suitability for low voltages

   B.High output voltage

   C.Constant frequency of oscillations

   D.High frequency


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C.Constant frequency of oscillations

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33. In oscillator circuits the energy feedback to its input terminal from output is


   A.Always in phase with the input signal

   B.2700 out of phase with the input signal

   C.1800 out of phase with the input signal

   D.900 out of phase with the input signal


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A.Always in phase with the input signal

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34. Oscillators have .............. feedback


   A.Positive

   B.No

   C.Negative

   D.Either Positive or negative


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A.Positive

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35. Oscillations occur with


   A.Positive feedback having unity loop gain

   B.Positive feedback having unity loop

   C.Negative feedback having unity loop gain

   D.None of the above


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A.Positive feedback having unity loop gain

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