A parallel tuned circuit in an oscillator consists of a 40-micro H inductor in parallel with a 330-pF capacitor. A varactor with a capacitance of 50 pF is connected in parallel with the circuit. What is the resonant frequency of the tuned circuit and the oscillator operating frequency?
If the varactor capacitance of the circuit in above problem is decreased to 25 pF. (a) how does the frequency change and (b) what is the new resonant frequency?
Can someone please show me how to work this.