SERIES AND PARALLEL RESONANT CIRCUITS

In a series RLC circuit there becomes a frequency point were the inductive reactance of the inductor becomes equal in value to the capacitive reactance of the capacitor. The point at which this occurs is called the Resonant Frequency, ( ƒr ) and as we are analysing a series RLC circuit this resonance frequency produces a Series Resonance circuit. Series resonance circuits are one of the most important circuits used electronics. They can be found in various forms in mains AC filters, and also in radio and television sets producing a very selective tuning circuit for the receiving the different channels.