The power factor of an AC circuit is 0.8. What is the phase difference between voltage and current?
Q1. The power factor of an AC circuit is 0.8. What is the phase difference between voltage and current?
Answer: 36.87 degrees
Explanation: Power factor = cos(φ) = 0.8; φ = arccos(0.8) = 36.87 degrees. Option B is incorrect due to wrong calculation.