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/* Defining the Physical Structure in EM.Ferma */
EM.Ferma offers the following types of material objects for construction of your physical structure:
* '''[[Defining_Materials_in_EM.Cube#Perfect_Electric_Conductors_.26_Metal_Traces | Perfect Electric Conductor Conductors (PEC) Objects ]]''': A perfect electric conductor (PEC) is a material with ε<sub>r</sub> = 1 and σ = ∞. * '''[[Defining_Materials_in_EM.Cube#Defining_Dielectric_Materials | Dielectric/Magnetic Materials]]''': You can define dielectric materials with the relative permittivity ε<sub>r</sub> and electric conductivity σ for electrostatic analysis or magnetic (permeable) materials with the relative permeability μ<sub>r</sub> for magnetostatic analysis. [[Image:Info_icon.png|40px]] Click here for a general discussion of '''[[Defining Materials in EM.Cube]]'''. {{Note| You can define any solid or surface object as a fixed-potential PEC object.}} {{Note| Excluding surface and curve CAD objects, you can define any solid CAD object as a dielectric or magnetic material object.}}
EM.Ferma also offers the following types of source objects for excitation of your physical structure:
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.
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