"Sum up to zero..." or so the astronomers claim... but they have no proof.
"Charged particles move along magnetic flux lines..." Are you absolutely certain of that? Or are the charges separated into charge separated double layers... as we see can form in all plasmas we work with on Earth and that are scalable? Perhaps the magnetic flux lines are there because there are charged particles moving?
What creates your magnetic flux lines? Are they just "there" or are they the artifacts of moving electrons... as are all magnetic fields?
"What powers the sun is still assumed to be nuclear fusion ... " A fusion powered sun does not explain how you get from a 6000º surface to a multimillion degree upper atmosphere by "convection".
"...but that does not hold up..." That's the problem.
“What powers the sun is still assumed to be nuclear fusion ... “ A fusion powered sun does not explain how you get from a 6000º surface to a multimillion degree upper atmosphere by “convection”.
****************
All the scopes see is increased temperature on surface, which means released energy. A telescope see’s released energy (photons). A radio scope sees released energy (electromagnetic waves). When you look at the sun you are see’ing released energy, not the energy itself.
http://www.sasked.gov.sk.ca/docs/physics/u4b2phy.html
LATENT HEAT:
“The specific latent heat of fusion is the quantity of heat energy released when 1 kg of a substance solidifies (i.e. fuses) without changing its temperature. (liquid to solid)
The specific latent heat of vaporization is the quantity of heat energy needed to vaporize 1 kg of a substance without changing its temperature.” (liquid to gas)
I would imagine that the hydrogen plasma on the surface of the sun would release energy similar to Latent Heat of liquid to gas, or solid to liquid. I don’t know much about plasma. Its the fourth state of matter.
As you know from your physics days, the electric field of a dipole drops off to nothing right away but the magnetic field goes way out. Also, if there were a net charge on the sun it would be blowing off a lot of charged particles of either positive or negative charge depending on the net charge on the sun until the net charge balanced to zero.