=== Fixed-Potential PEC Objects===
A perfect electric conductor (PEC) is a material with ε<sub>r</sub> = 1 and σ = ∞. Under the static condition, every point on a PEC object has the same electric potential. By default, this is a zero potential, assuming meaning the PEC object is "grounded". You can define a nonzero voltage value for a PEC group. In that case, all the PEC object is effective objects belonging to that group are effectively turned into a voltage sourcesources. For example, tow two parallel PEC plates, one with a zero potential and the other with a nonzero potential represent a simple air-filled capacitor.
To add a new Fixed-Potential PEC group to a project, right-click on "Fixed-Potential PEC Objects" on the Navigation Tree, and select "Insert New PEC..." From the PEC dialog, you can change the default red color and set a value for the "Voltage" in Volts.
{{Note| You can define any solid or surface object as a fixed-potential PEC object.}}
=== Dielectric/Magnetic Materials ===