What is the unit of capacitance?

The unit of capacitance is the farad. Capacitance is a measure of a capacitor's ability to store electrical energy in an electric field. Specifically, one farad is defined as the capacitance when one coulomb of electric charge induces a potential difference of one volt across the plates of the capacitor.

Understanding capacitance and its unit is crucial for working with electronic circuits, as it determines how much charge a capacitor can hold for a given voltage. Capacitors are widely used in various applications, such as filtering, timing circuits, and energy storage, making proficiency in this concept important for amateur radio operators and technicians.

The other options refer to different electrical concepts: ohms measure resistance, volts measure electrical potential, and henrys measure inductance. Each of these units plays a distinct role in electrical and electronic theory but does not relate to capacitance.