ElectrostaticPDEComponent
ElectrostaticPDEComponent[vars, pars] yields an electrostatic PDE term with variables vars and parameters pars.
Examples
Create electrostatic PDE component:
ElectrostaticPDEComponent[{V[x, y], {x, y}}, <|"Permittivity" -> 1|>]Please visit the official Wolfram Language Reference for more details.