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Colpitts oscillator in the feedback section has an inductance of 4 mH and capacitors of 12 nH and 4 nH. Then the resonant frequency of Colpitts oscillator is:

Colpitts oscillator in the feedback section has an inductance of 4 mH and capacitors of 12 nH and 4 nH. Then the resonant frequency of Colpitts oscillator is: Correct Answer 45.9 kHz

Resonant frequency of Colpitts oscillator is given by 1/2π√LCₒ, where C0 is the equivalent capacitance given by C1C2/ (C1+C2). Substituting and solving the equation, resonant frequency is 45.9 kHz.

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