STANDARDPhysics-Alternating Current
STANDARD Physics Power Factor MCQ Question
Type: MCQ-conceptual-Easy-Class 12
In a series LCR circuit, the phase difference between the voltage and the current is 45°. Then the power factor will be
A
0.607
B
0.707
C
0.808
D
1
Correct Answer
Option B
Detailed Explanation
The power factor in a series LCR circuit is given by cos(ϕ). For ϕ = 45°, cos(45°) = 1/√2 = 0.707.
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