STANDARDPhysics-Alternating Current
STANDARD Physics Power Factor MCQ Question
Type: MCQ-numerical-Medium-Class 12
The power factor of the circuit as shown in figure is
A
0.2
B
0.4
C
0.8
D
0.6
Correct Answer
Option C
Detailed Explanation
Resistance of the circuit, R = R₁ + R₂ = 40 Ω + 40 Ω = 80 Ω. Impedance of the circuit, Z = √(R² + (Xc - Xl)²) = √(80² + (40 - 100)²) = 100 Ω. Power factor = R/Z = 80/100 = 0.8.
Found an issue with this question?
Related Questions
More from Alternating Current
More from
What is the frequency called at which the amplitude of oscillation in a series RLC circuit is maximized?
RLC CircuitsPhysics
What condition is necessary for resonance to occur in an AC circuit?
ResonancePhysics
What is the relationship between rms voltage and the amplitude of ac voltage?
Power in AC CircuitsPhysics