Current Magnification in Parallel Resonance

Current Magnification in Parallel Resonance: Current Magnification in Parallel Resonance occurs when the voltage applied to the parallel circuit, V=IR Since For the Capacitor, Therefore, the quality factor Qr = IL/I or IC/I Reactance curves in Parallel Resonance: The effect of variation of frequency on the reactance of the parallel circuit is shown in Fig. 8.18. […]

Quality Factor of Parallel RLC Circuit

Quality Factor of Parallel RLC Circuit: Consider the Quality Factor of Parallel RLC Circuit shown in Fig. 8.16. In the circuit shown, the condition for resonance occurs when the susceptance part is zero. Admittance The frequency at which resonance occurs is The voltage and current variation with frequency is shown in Fig. 8.17. At resonant […]

Parallel RLC Circuit Resonance

Parallel RLC Circuit Resonance: Parallel RLC Circuit Resonance – Basically, parallel resonance occurs when XC = XL. The frequency at which resonance occurs is called the resonant frequency. When XC = XL, the two branch currents are equal in magnitude and 180° out of phase with each other. Therefore, the two currents cancel each other out, […]

Voltage Magnification in Series Resonance

Voltage Magnification in Series Resonance: Voltage Magnification in Series Resonance – If we assume that the voltage applied to the series RLC circuit is V, and the current at resonance is I, then the voltage across L is VL = IXL = (V/R) ωrL. Similarly, the voltage across C Since , where ωr is the frequency at resonance. […]