What is the measure of electric charge storage capability commonly expressed in?

The measure of electric charge storage capability is commonly expressed in Farads. A Farad is defined as the amount of electric charge stored per unit voltage. This means that one Farad represents the capacity to store one coulomb of charge at a potential difference of one volt. Capacitors, which are components designed to store electric energy, are rated in Farads, indicating their ability to hold charge.

Understanding this unit is crucial as it relates to various applications in electrical and electronic systems where energy storage is necessary, such as in smoothing out voltage fluctuations in power supplies or for timing applications in circuits. Other options listed relate to different electrical properties: Ohms measure resistance, Volts measure electric potential, and Amperes measure current flow, but none of these are used to describe how much electric charge can be stored, making Farads the correct and relevant choice.