The farad is a unit of capacitance, named after physicist Michael Faraday, used to describe storage of charge in capacitors.[1] The unit for the farad is coulombs per volt (C/V). This describes a case of two oppositely charge plates, each with a coulomb of charge, and a potential difference of one volt between them.

A farad is a large capacitance for most capacitors. Typically electronic applications of capacitors deal with capacitance in the picofarads (10-12 F) to microfarads (10-6 F), however usage of capacitors range all the way up to kilofarads (1000 F).[2]


  1. WhatIs.com. (2015, Mar.7). What is a Farad [Online]. Available: http://whatis.techtarget.com/definition/farad-F
  2. Battery University. BU-209: Supercapacitor [Online]. Available: http://batteryuniversity.com/learn/article/whats_the_role_of_the_supercapacitor

Authors and Editors

Jordan Hanania, Kailyn Stenhouse, Jason Donev
Last updated: September 3, 2015
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