The quality factor (Q) is the ratio of true power to apparent power.
A. True
B. False
Answer: Option B
Solution (By Examveda Team)
Quality factor (Q): The quality factor is a dimensionless parameter that represents the ratio of the energy stored in the circuit to the energy dissipated per cycle.Formula for Q: For a series RLC circuit, the quality factor is given by:
Q = (1/R) × √(L/C)
Here, R is the resistance, L is the inductance, and C is the capacitance.
True power vs. Apparent power: The ratio of true power to apparent power is the power factor (cos φ), not the quality factor.
Key distinction: The quality factor is related to the sharpness of resonance in a circuit, while the power factor represents the efficiency of power usage in an AC circuit.
Thus, the statement that the quality factor (Q) is the ratio of true power to apparent power is false.
This Question Belongs to Electrical Engineering >> RLC Circuits And Resonance
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Power Factor (PF)
The power factor is a measure of how effectively electrical power is being converted into useful work output. It is defined as the ratio of the real power (P, measured in watts) to the apparent power (S, measured in volt-amperes