Question:
The peak energy stored in an RLC circuit divided by the average energy dissipated in the circuit per radian at resonance is called:
The peak energy stored in an RLC circuit divided by the average energy dissipated in the circuit per radian at resonance is called:
Updated On: Jul 5, 2025
- Dissipation factor
- Power factor
- Q-factor
- Impedance factor
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The Correct Option is C
Solution and Explanation
In an RLC (Resistor–Inductor–Capacitor) circuit, the Q-factor (Quality Factor) is a dimensionless parameter that describes how underdamped an oscillator or resonator is. It is defined as:
[
Q = fractextPeak energy storedtextAverage energy dissipated per radian
]
At resonance, the Q-factor measures the sharpness or selectivity of the circuit's resonance. A higher Q-factor means a narrower and more selective resonance peak.
Explanation of Options:
(A) Dissipation factor: It is the inverse of Q-factor.
(B) Power factor: Relates to phase difference between voltage and current in AC.
(C) Q-factor: Correct. Measures energy stored vs energy lost per cycle.
(D) Impedance factor: Not a standard term used in this context.
Explanation of Options:
(A) Dissipation factor: It is the inverse of Q-factor.
(B) Power factor: Relates to phase difference between voltage and current in AC.
(C) Q-factor: Correct. Measures energy stored vs energy lost per cycle.
(D) Impedance factor: Not a standard term used in this context.
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