Explain orbital magnetic moment and spin magnetic moment.

Explanation

1. Any charge in uniform circular motion would have an associated magnetic moment given by an expression,
`mu_(l)=e/(2m_(e))(l)`
2. This dipole moment is labelled as the orbital magnetic moment it having value equal to `9.27xx10^(-24)Am^(2)`.
3. Besides the orbital moment the electron has an intrinsic magnetic moment, which has the same numerical value as `9.27xx10^(-24)Am^(2)`. It is called spin magnetic moment.
4. But we hasten to add that it is not as though the electron is spinning. The electron is an elementary particle and its does not have on axis to spin around like a top or our earth.