physical constant used to express the magnetic moment of an electron
e h/4 π m ≈ (9,274 078 ± 0,000 036) x 10−24 Am2
where e is the elementary charge, h the Planck's constant, and m the electron rest mass
NOTE 1 – The numerical value quoted is that adopted by the International Union of Pure and Applied Physics (IUPAP).
NOTE 2 – The magnetic moment of a free electron due to its spin is approximately equal to 1,001μB.
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