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%I #11 Apr 23 2023 22:31:30
%S 1,0,0,0,0,0,0,0,1,7,7,9,3,6,6,7,5,6,4,3,2,3,6,1,3,3,4,0,6,9,8,9,5,7,
%T 8,0,9,6,8,1,7,3,1,7,5,5,1,4,7,8,7,7,6,3,1,7,6,3,5,5,5,0,4,7,4,3,1,6,
%U 4,7,6,2,2,3,8,2,6,6,9,0,5,7,7,3,8,7,4
%N Decimal expansion of conventional value of ohm-90 (Omega_{90}).
%C The conventional ohm, Omega_{90}, is the electrical resistance measured against a quantum Hall effect standard using the defined value of the von Klitzing constant, R_{K-90} (i.e., 25812.807 ohm).
%C Hence R_K = 25812.807 * Omega_{90} in units ohm (see Wikipedia, "Conventional electrical unit", in Links).
%C Thus according to the 2019 SI system, Omega_{90} is given by R_K/R_{K-90} in units ohm.
%C Moreover, according to the 2019 SI system, also the conventional value of henry_90 (H_{90}) is given by the present sequence in units H (i.e., H_{90} = 1.00000001779366756432361334 kg*m^2*s^(-2)*A^(-2)).
%H NIST Physics Laboratory, <a href="https://physics.nist.gov/cgi-bin/cuu/CCValue?inductance90">conventional value of henry-90</a>
%H NIST Physics Laboratory, <a href="https://physics.nist.gov/cgi-bin/cuu/Value?ohm90">conventional value of ohm-90</a>
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Conventional_electrical_unit">Conventional electrical unit</a>
%F Omega_{90} = R_K/R_{K-90} = (6.62607015*10^(-34)/(1.602176634*10^(-19))^2)/25812.807 = 1 + 98251739507564459/5521725026748260492435541 ohm.
%e 1.00000001779366756432361334... (rational number).
%Y Cf. A248510.
%K cons,nonn,easy
%O 1,10
%A _Marco Ripà_, Feb 28 2023
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