What do we mean by bohr magnecton?

Asked by SUSMI ELSA SAM | 24th Nov, 2012, 12:59: PM

Expert Answer:

In atomic physics, the Bohr magneton (symbol ?B) is a physical conatant and the natural unit for expressing an electron magnetic dipole moment. The Bohr magneton is defined in SI units by
From the classical expression for magnetic moment, m = IA, an expression for the magnetic moment from an electron in a circular orbit around a nucleus can be deduced. It is proportional to the angular moment of the electron. The effective current is

 

which can be rewritten as

so that the magnetic moment is

Answered by  | 26th Nov, 2012, 12:30: PM

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