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Question: Answered & Verified by Expert
A circuit has a resistance of $12 \Omega$ and an impedance of $15 \Omega$. The power factor of the circuit will be
PhysicsAlternating CurrentJEE Main
Options:
  • A
    0.8
  • B
    0.4
  • C
    1.25
  • D
    0.125
Solution:
1095 Upvotes Verified Answer
The correct answer is:
0.8
$\cos \phi=\frac{R}{Z}=\frac{12}{15}=\frac{4}{5}=0.8$

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