The unit of Capacitance is the farad (F). It is named after the English physicist Michael Faraday and is defined as the amount of electric charge that can be stored in a capacitor per unit of voltage across the capacitor. One farad of capacitance is defined as the capacitance of a capacitor that stores one coulomb of charge when a potential difference of one volt is applied across its plates. However, in practical applications, capacitors are often measured in smaller units such as microfarads (μF), nanofarads (nF), or picofarads (pF).