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The
nuclear magneton
(symbol ), is a
physical constant
of magnetic moment, defined by:
where:
is the
elementary charge
,
is the
Dirac's constant
,
is the
proton
rest mass
In the
SI
system of units
it's value is approximately:
= 5.050 786 6(17) × 10
-27
J
·
T
-1
See also proton magnetic moment.