Does a magnetic flux tube always have a current flowing through it?

[ImaLooser]

Does a magnetic flux tube always have a current flowing in it?

Where is the current? Electrons on the surface and protons inside?

Why are flux tubes magnetically buoyant? That is, why is there a difference in pressure inside and outside the tube.

As far as these questions go, is there any difference between ordinary Type I flux tubes and quantum Type II flux tubes?

 

[ImaLooser]

Does a magnetic flux tube always have a current flowing in it?

Where is the current? Electrons on the surface and protons inside?

Why are flux tubes magnetically buoyant? That is, why is there a difference in pressure inside and outside the tube.

As far as these questions go, is there any difference between ordinary Type I flux tubes and quantum Type II flux tubes?

No replies. Now what do I do? The last time I reposted in another group I was penalized.

 

[ImaLooser]

Does a magnetic flux tube always have a current flowing in it?

Where is the current? Electrons on the surface and protons inside?

I found it. It is called Birkeland current.