OFFSET
0,1
COMMENTS
Since the conventional volt (i.e., V_{90}, as stated by A361006) is the electromotive force measured against a Josephson effect standard using the defined value of the Josephson constant, K_{J-90}, and given the fact that the conventional ohm (i.e., Omega_{90}, as stated by A361010) is the electrical resistance measured against a quantum Hall effect standard using the defined value of the von Klitzing constant, R_{K-90} (see Wikipedia, "Conventional electrical unit", in Links), it follows that the conventional farad (i.e., F_{90}) is given by C_{90}/V_{90}, which is R_{K-90}/R_K according to the 2019 SI system in units F.
LINKS
NIST Physics Laboratory, conventional value of farad-90
Wikipedia, Conventional electrical unit
FORMULA
F_{90} = 25812.807/((6.62607015*10^(-34))/(1.602176634*10^(-19))^2) = 5521725026748260492435541/5521725125000000000000000 F.
EXAMPLE
0.99999998220633275229... (rational number).
CROSSREFS
KEYWORD
AUTHOR
Marco Ripà, Apr 02 2023
STATUS
approved