STANDARDPhysics-AC Circuits
STANDARD Physics LCR Circuits MCQ Question
Type: MCQ-numerical-Medium
The potential differences across the resistance, capacitance and inductance are 80 V, 40 V and 100 V respectively in an L-C-R circuit. The power factor of this circuit is :-
A
0.8
B
1.0
C
0.4
D
0.5
Correct Answer
Option A
Detailed Explanation
The power factor is calculated using the formula: power factor = V_R / √(V_R² + (V_L - V_C)²). Substituting the given values, we get 80 / √(6400 + 3600) = 0.8.
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