Physics
Power in AC Circuit: The Power Factor
ए.सी. परिपथ में शक्ति: शक्ति गुणांक
In this Class 12 Physics topic from Chapter 7, Alternating Current, students learn how an AC circuit consumes and transfers electrical power. They relate average power to RMS voltage, RMS current, and the phase difference between voltage and current, expressed through the power factor, cos φ. The topic distinguishes useful power from reactive power in resistive, inductive, and capacitive circuits, and explains why a low power factor increases current and transmission losses.
Practice questions
No questions available yet.