Metatron wrote:electricgravity1 wrote:That's one main reason why the surface of the Earth is negatively charged.
At what field density?
Earth's surface typically has an average of - 500kC.
Earth's surface is 5.1x10^14 m^2
Therefore Charge per area is 9.8x10^-10 C/m^2
About 6.11 billion excess electrons per square metre.
Working out charge density is a bit arbitrary, charge is usually measured vs area. But there is some sense in having density ratio here:
For 1 m^3 of ground at 2000kg, thats about 1 excess electron per 10^20 proton - electron pairs.
That's in rough agreement with electro-static forces being 10^21 times stronger than gravity for macro objects.
Now you want 'field density'. Which likely means the electric field, i.e. volts per metre.
For this, its normal to have another reference point. The ground is typically 300,000 V to the ionosphere to 300 million in high voltage storms. But relative to the core? I don't know the charge of the core, so I don't know the voltage. Perhaps though, it is possible to work out given that we know the force of gravity, and also the charge of Earth's surface. Will do this exercise soon.