A capacitor is a device used to store electrical charge. It consists of two conductive plates separated by an insulating material, known as a dielectric. When voltage is applied across the plates, charge builds up on the plates, creating an electric field within the dielectric material.
Capacitors are used in various electronic devices, including computers, radios, and power supplies. They can store and release electrical energy, and they can be used to filter out unwanted frequencies in electrical signals.
