Electrical Engineering ⇒ Topic : QFactor of Series Resonant Circuit

David
 
QFactor of Series Resonant Circuit At series resonance, the voltage across L or C (the two drops being equal and opposite) builds up to a value many times greater than the applied voltage V (= *I_{r}R).
The ratio V_{L} / V or V_{C} / V at resonance is a measure of the quality of a series resonant circuit. This is called the Qfactor (Q stands for quality) of the circuit. It is also known as the voltage magnification factor. Since the coil resistance is often the only resistance in a series resonant circuit, the Q is sometimes refered to as the Qfactor of the coil. Therefore, we use the expression X_{L} / R for Q in series resonant circuit. The Qfactor of a series resonant circuit can also be expressed in terms of L and C. The series resonant circuit is also called an acceptor circuit because such a circuit accepts currents at one particular frequency (i.e., f_{r}) but virtually rejects currents of other frequencies. Such circuits are used in radio and television receivers  
 
!! OOPS Login [Click here] is required for more results / answer