NEET Physics Power in AC Circuits MCQ Question
In an AC circuit, the power factor is given by cosφ, where φ is the phase difference between voltage and current. If the rms voltage is 220 V, rms current is 5 A, and the power factor is 0.8, what is the average power consumed in the circuit?
880 W
1100 W
176 W
220 W
Correct Answer
Detailed Explanation
The average power consumed in an AC circuit is given by P = VIcosφ, where V is the rms voltage, I is the rms current, and cosφ is the power factor. Substituting the given values, P = 220 V * 5 A * 0.8 = 880 W.
Found an issue with this question?
Related Questions
More from
What is the term used to describe the phase relationship factor between voltage and current in an AC circuit?
In the context of an LC circuit, which of the following statements about energy oscillation and conservation is correct?
In the free oscillations of an LC circuit, what remains constant over time?