Farad << FAR uhd >> is a unit used to measure electrical capacitance. It is named for the English physicist Michael Faraday, and its symbol is F.
The electric charge in a capacitor is directly proportional to the potential difference (voltage) applied to it. If 1 coulomb of charge gives a capacitor a potential difference of 1 volt, the capacitance is a farad. In electronics, the microfarad and the picofarad are usually used to measure capacitance. A microfarad is one-millionth of a farad, and a picofarad is one-millionth of a microfarad.
See also Capacitance; Capacitor; Coulomb; Volt.
