=== Static Modeling Methods ===
Static or quasi-static approximations of [[Maxwell's Equations|Maxwell's equations]] can be reliably applied in two different cases: at low frequencies from DC to a few Megahertz, or when the total electrical size of your physical structure is a fraction of the wavelength and wave retardation effects are negligible. In the latter case, your physical structure is effectively considered as a lumped device. Under those conditions, the electric and magnetic fields decouple from each other. Electric fields can be computed from charge sources or their equivalents and magnetic fields can be computed from current sources or their equivalents.
[[Image:Info_icon.png|40px]] Click here to learn more about the '''[[Electrostatic and Magnetostatic Methods | Theory of Electrostatic and Magnetostatic Methods]]'''.
=== Advantages & Limitations of EM.Ferma's Static Simulator ===
EM.Ferma computes the electric and magnetic fields independent of each other based on electrostatic and magnetostatic approximations, respectively. As a result, any "electromagnetic" coupling effects or wave retardation effects are ignored in the simulation process. In exchange, static or quasi-static solutions are computationally much more efficient than the full-wave solutions of [[Maxwell's Equations|Maxwell's equations]]. Therefore, for low-frequency electromagnetic modeling problems or for simulation of sub-wavelength devices, EM.Ferma offers a faster alternative to [[EM.Cube]]'s full-wave modules like [[EM.Tempo]], [[EM.Picasso]] or [[EM.Libera]]. EM.Ferma currently provides a fixed-cell brick volume mesh generator. To model highly irregular geometries or curved objects, you may have to use very small cell sizes, which may lead to a large computational problem.
== Building the Physical Structure in EM.Ferma ==