Name
Symbol
Derivation
Value
Unit
Info
1
Bohr magneton
mB
eħ/2me
927.400899(37) x 10-26
JT-1
-
2
Compton wavelength of electron
lc
h/mec
2.426310215(18) x 10-12
m
3
electron gyromagnetic
ge
1.760859794(71) x 1011
s-1T-1
4
elementary charge (electron charge)
e
1.602176462(63) x 10-19
C
5
Josephson constant
kJ
2e/h
483597.898(19) x 109
HzV-1
6
magnetic flux quantum
F0
h/2e
2.067833636(81) x 10-15
Wb
7
nuclear magneton
mN
eħ/2mp
5.0578317(20) x 10-27
8
von Klitzing constant
RK
h/e2
25812.807572(95)
W
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