Computing Capacitance-COMSOL

A capacitor, in its simplest form, is a two terminal electrical device that stores electric

energy when a voltage is applied across the terminals. The stored electric energy is

proportional to the applied voltage squared and is determined by the capacitance of the

device. This example introduces a model of a simple capacitor. The electric field and device

capacitance are solved for under electrostatic conditions. The capacitance of the device

is evaluated to be approximately 43 pF.

Reference: Computing Capacitance (comsol.com)

Geometry model

Generated Mesh

The electric field strength in the dielectric and air domain surrounding the

capacitor.

The electric field strength in the dielectric and air domain surrounding the

capacitor.