A capacitor is {an electrical} system that shops power in an electrical discipline. It consists of two conductors separated by an insulator. When a capacitor is charged, one conductor has a optimistic cost and the opposite has a destructive cost. The quantity of cost saved on a capacitor is proportional to the voltage throughout the capacitor and the capacitance of the capacitor.
Capacitors are utilized in all kinds of digital circuits. They can be utilized to retailer power, filter out noise, and supply a secure voltage reference. Capacitors are additionally utilized in energy provides, timing circuits, and audio filters.