Before revision: The tank circuit resonates at its natural frequency, which is given by: f=2πLCt1 Where: f = frequency of oscillation L = inductance of the inductor Ct = total capacitance of the series combination of C1 and C2, given by: Ct= C1+ C2C1C2 The resonant frequency is independent of the values of C1 and C2, but depends on their ratio.
After revision: The tank circuit resonates at its natural frequency, which is given by: f=2πLCt1 Where: f = frequency of oscillation L = inductance of the inductor Ct = total capacitance of the series combination of C1 and C2, given by: Ct= C1+ C2)/(C1C2)( The resonant frequency is independent of the values of C1 and C2, but depends on their ratio.