What is the difference between AC and DC capacitors?

A capacitor is an electronic device constructed using two plates of electrically conductive material separated by a non-conductive material, or insulator. It is used in... read more

The two plates of a capacitor, electrically insulated from each other, store energy in the form of capacitance. When DC current is applied to a circuit with only resistance and capacitance, the capacitor will charge to the level of the applied voltage. read more

In AC circuits the alternating current periodically changes directions, charging the capacitor in one direction and then the other. As the plates discharge during the change of direction, the capacitor output current alternates in phase with the AC voltage. read more

Major difference between AC Capacitor and DC Capacitor. If a capacitor is attached to a battery, once the capacitor is charged, it allows no current to flow between the poles of the battery. Thus it blocks DC current. But in case of AC, the current flows through the capacitor uninterrupted. read more