What is the function of a capacitor in electronic equipment?

A capacitor's primary function in electronic equipment is to store and release electrical energy. It consists of two conductive plates separated by an insulator, which allows it to accumulate charge when a voltage is applied across its terminals. This storage capability enables capacitors to smooth out voltage fluctuations, filter signals in power supplies, and provide bursts of energy to circuits as needed.

In various applications, capacitors can regulate voltage levels, enhance signal quality, and maintain system stability by providing immediate energy during peak demands. This fundamental characteristic of capacitors makes them essential components in numerous electronic devices, ensuring they operate efficiently and reliably.