Definition of farad in English:


(also F)


  • The SI unit of electrical capacitance, equal to the capacitance of a capacitor in which one coulomb of charge causes a potential difference of one volt.

    • ‘If it takes something the size of a can of tuna to hold a farad, then 10,080 farads is going to take up a LOT more space than a single AA battery!’
    • ‘This was a conference bringing together mostly physicists involved with making very precise measurements of quantities like mass, time, frequency, resistance, capacitance (farads) etc.’
    • ‘One farad is the SI unit to measure capacitance of electricity (the capability of a body or device to store an electric charge).’
    • ‘The farad, a measure of a device's capacity to store electric charge, probably doesn't do full justice to his contributions to science.’


Mid 19th century shortening of faraday. The term was originally proposed as a unit of electrical charge.