Published by:
CGP EDU Academic Team
Published on: September 12, 2026
Power factor at resonance is ..........
Text Solution
Verified by ExpertsThe correct answer is:
A
At resonance in an RLC circuit, the power factor is calculated as follows:
- Resonance occurs in RLC circuits when the inductive reactance (XL) equals the capacitive reactance (XC), i.e., XL = XC.
- At this point, the impedance (Z) of the circuit is purely resistive, which means Z = R (where R is the resistance).
- The power factor (PF) is given by the formula:
PF = \frac{R}{Z}
Since, at resonance, Z = R, we have:
PF = \frac{R}{R} = 1.
Therefore, the power factor at resonance is:
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