What is the net electric charge (in magnitude and sign) of the Sun and its corona?
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According to this post and references there, the charge of the Sun is positive, the magnitude is estimated as 77 Coulombs, or about 1 electron per million tons of matter.
The reason for this is that
The net global charge on the Sun comes about because electrons, being rather less massive than protons, are more able to escape the sun as part of the solar wind. The net charge achieved is a result of the balance between the forces that eject the solar wind, which push electrons more efficiently then protons, and the attractive force on the electrons of the net positive charge that results. Equilibrium of these forces establishes the allowed net charge.
Emilio Pisanty
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akhmeteli
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Utilizing the accepted number 3.8427 x 10^26W. The charge of the Sun is 2.948124982 x 10^13 As. While the Amp is 1.00995716 x 10^12 A, the volt 3.804814 x 10^14 Kgm2/As3. VA = W and V/A = 376 Ohms. Which is the background impedance of vacuum space. The power is derived from the equation P= oeAT. From which the solar constant of 1366 W/m2 is derived. q = sq.rt.WF/m(4Pir)2/c = As A = qc/4Pir = Amp V = q/4PiF/mr = Kgm2/As3 W = q2c/F/m(4Pir)2 = Kgm2/s3
