What element is used to store charge in a digital circuit?

A capacitor is the element used to store charge in a digital circuit. It functions by accumulating electric charge on its plates when a voltage is applied. The ability of a capacitor to store charge is defined by its capacitance, which is measured in farads. In digital electronics, capacitors play crucial roles, such as filtering signals, decoupling power supplies, and establishing time constants in timing circuits.

Capacitors can quickly charge and discharge, allowing them to manage transient signals effectively, which is essential in digital applications where voltage levels change rapidly. By storing charge, capacitors enable the stability and reliability of circuits, working alongside other components to shape the behavior of signals in various digital devices. This capability to store and release energy makes capacitors indispensable in designing efficient electronic circuits.