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Coulombic interactions
Posted Feb 25, 2024, 9:59 a.m. EST 1 Reply
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Hello! There is a task: It is necessary to determine the coulomb force between two charged spheres. The potential one of the spheres is set at 30 kV I have tried a large number of calculations, but not one makes it impossible to calculate the coulomb force. Please tell me where and how I can make such a calculation.
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I'd use a 2D axisymmetric formulation with the electrostatics (es) interface. You say "charged" spheres, but since you also specify a potential, I am going to assume you mean that the spheres are conducting. Also, bear in mind that this sort of calculation is essentially a textbook problem (well, depending on your textbook). Among others, see: Banerjee Shubho, Peters Thomas, Brown Nolan and Song Yi. 2021. "Exact closed-form and asymptotic expressions for the electrostatic force between two conducting spheres," Proc. R. Soc. A. 4772020086620200866. http://doi.org/10.1098/rspa.2020.0866
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