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farad (F)

Farad (F) is the unit for electrical capacitance. It is defined in the International System of Units( SI) and corresponds to the quotient of coulomb and voltage (C/V). Coulomb, in turn, corresponds to ampere-seconds. It follows that a farad (F) is the quotient of ampere-seconds and volts( As/V).

The farad and its divisions

The farad and its divisions

A capacitance of one farad causes a charging current of 1 A for one second at a charging voltage of 1 V.

The unit farad is named after the British physicist Michael Faraday (1791-1867). Since it is an extremely large unit of capacitance, capacitors with much smaller capacitance values between millifarad (mF, `10^-3`) and picofarad (pF, `10^-12`) are used in most circuits in practice. Only supercapacitors have capacitance values exceeding one farad up to several thousand farads (kF).

Englisch: farad - F
Updated at: 21.01.2022
#Words: 131
Links: unit (U), service indicator (SS7) (SI), coulomb (C), voltage, ampere (A)
Translations: DE

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