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At series resonance, the impedance of a crystal is________

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At series resonance, the impedance of a crystal is________

(a) minimum

(b) maximum

(c) equal

(d) Zero

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I'm obligated to ask this question of Oscillators in portion Power Amplifiers of Electronic Devices & Circuits

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Right choice is (a) minimum

Explanation: The slope of the crystals impedance suggests that as the frequency increases across its terminals. At a particular frequency, the interaction between the series capacitor and the inductor creates a series resonance circuit reducing the crystals impedance to a minimum and equal to Resistance.

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