noun Download 🔗Share Pff Examples : "After I told him I couldn't lend him money, his only response was a dismissive "pf." " sound exclamation communication Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share The ratio of the actual power to the apparent power in an alternating current power system; specifically, the cosine of the phase angle between the voltage and the current. Examples : "The power factor is of interest because it is a measure of the power which does useful work." physics energy electronics technical electric system function Chat with AIVocabulary GamePractice Reading