Tue, 05 May 2026 10:29:59 +0000

CorrectQuestion: What is the Main Purpose of Using a Capacitor in an AC Circuit? When exploring AC (alternating current) electrical circuits, one frequently asked question is: What is the main purpose of using a capacitor in an AC circuit? Understanding this fundamental concept is essential for anyone studying electronics, electrical engineering, or home appliance functionality. Capacitors play a vital role in AC systems—not just for energy storage like in DC circuits, but primarily for improving power quality, control, and efficiency. ### Why Capacitors Matter in AC Circuits In an AC circuit, the voltage and current periodically reverse direction, unlike DC, which flows in one direction. While capacitors inherently store energy in an electric field, their behavior in AC circuits leverages this property in unique ways: