CCLers:
In the expression for Coulombic potential
e^2
V(r) = - -----------
4 pi Eo r
where Eo the permittivity of free space; e charge; r distance between
electron and proton. Could someone enlighten me the significance
of permittivity, what actually it means and why does the coulombic
potential decreases with the increase in permittivity.
Thanks
Artiben
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