A360750 - OEIS

%I #13 Jun 20 2023 10:08:28

%S 1,5,1,9,2,6,7,4,4,7,8,7,8,6,2,6,2,0,1,2,5,0,2,3,4,9,7,0,8,9,4,5,1,3,

%T 0,3,5,6,6,3,0,2,0,4,5,8,8,5,1,8,0,0,3,3,8,2,8,7,5,2,7,2,8,3,4,9,5,5,

%U 5,4,1,7,3,0,0,0,6,0,2,7,0,9,9,0,1,0,9

%N Decimal expansion of the elementary charge over h-bar according to the 2019 SI system in units A/J.

%C e, the elementary charge, is exactly 1.602176634*10^(-19) coulomb according to the 2019 SI system definition (see A081823), whereas the value of h-bar, the reduced Planck constant (h/(2*Pi)), is given by A254181 and is equal to 1.054571817...*10^(-34) joule seconds (1.054571817...*10^(-34) kg*m^2*s^(-1)).

%H NIST Physics Laboratory, <a href="https://physics.nist.gov/cgi-bin/cuu/Value?eshbar">elementary charge over h-bar</a>

%F e/h-bar = e/(h/2*Pi) = (2*Pi*1.602176634*10^(-19))/(6.62607015*10^(-34)) A/J.

%F Equals A081823 / A254181.

%e e/h-bar = 1519267447878626.20125... A/J.

%Y Cf. A003676, A081823, A254181.

%K nonn,cons,easy

%O 16,2

%A _Marco Ripà_, Feb 19 2023