# Charge and magnetic moment of an electron.

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Posted (edited)

How do they relate? If velocity increases magnetic moment, is charge affected?(Lenz's law).

Edited by Butch

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The charge of an electron is constant AFAIK. If I am wrong, someone will let us know.

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The magnetic moment is given by g(-e/2m)L where g is the g-factor (related to the gyromagnetic ratio), and L is the angular momentum. L can be orbital and/or spin angular momentum, so an electron has an inherent magnetic moment owing to its spin.

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19 hours ago, Butch said:

If velocity increases magnetic moment

It doesn't, does it?

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On 12/31/2017 at 7:08 PM, Butch said:

How do they relate? If velocity increases magnetic moment, is charge affected?(Lenz's law).

I apologise for not making my inquiry clear, however it has festered and come into better focus...

Consider the following:

Electron A has velocity that produces magnetic moment n1, electron B has velocity that produces magnetic moment n2.

Would the force between A and B be greater than that stated in Coulomb's law?

If not why?

On 1/1/2018 at 2:19 PM, Strange said:

It doesn't, does it?

Hmm, it was my understanding that it did, perhaps I should reread?

On 1/1/2018 at 11:08 AM, swansont said:

The magnetic moment is given by g(-e/2m)L where g is the g-factor (related to the gyromagnetic ratio), and L is the angular momentum. L can be orbital and/or spin angular momentum, so an electron has an inherent magnetic moment owing to its spin.

Okay, if it is orbital L would that not affect the force between particles?

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Velocity does not produce the magnetic moment. It will produce a magnetic field, as would any moving charge.

2 hours ago, Butch said:

Okay, if it is orbital L would that not affect the force between particles?

Yes, and it would be responsible for a small shift in the energy levels of the atom.

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13 hours ago, swansont said:

Velocity does not produce the magnetic moment. It will produce a magnetic field, as would any moving charge.

Yes, and it would be responsible for a small shift in the energy levels of the atom.

Thank you.