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The reactance of crystal oscillator will be inductive if oscillator operating frequency is __________

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The reactance of crystal oscillator will be inductive if oscillator operating frequency is __________

(a) Greater than parallel resonance frequency

(b) Less than series resonance frequency

(c) In between parallel resonance frequency and series resonance frequency

(d) Greater than series resonance frequency

I had been asked this question in an interview for job.

The doubt is from Crystal Oscillator-1 topic in portion Oscillators of Analog Circuits

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Correct option is (c) In between parallel resonance frequency and series resonance frequency

Explanation: When the frequency of oscillation of crystal becomes less than that of wS the oscillator becomes capacitive and in between wS and wP it becomes inductive.

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