Calculate the active power in a 457 F capacitor.(a) 715 W(b) 565 W(c) 545 W(d) 0 WI had been asked this question at a job interview.This is a very interesting question from DC Motors topic in chapter Characteristics of DC & AC Motors of Electric Drives

Calculate the active power in a 457 F capacitor.(a) 715 W(b) 565 W(c)

1.	Calculate the active power in a 457 F capacitor.(a) 715 W(b) 565 W(c) 545 W(d) 0 WI had been asked this question at a job interview.This is a very interesting question from DC Motors topic in chapter Characteristics of DC & AC Motors of Electric Drives
Answer» The correct choice is (d) 0 W Easy explanation: The capacitor is a linear element. It only absorbs reactive power and stores it in the FORM of OSCILLATING energy. The voltage and current are 90° in phase in case of the capacitor so the angle between V & I is 90°. P = VIcos90 = 0 W. Current leads the voltage in case of the capacitor.

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