The Electric Field boundary condition

specifies the tangential component of the electric field. It should in general not be used to excite a model. Consider using the Port, Lumped Port, or Scattering Boundary Condition instead. It is provided mainly for completeness and for advanced users who can recognize the special modeling situations when it is appropriate to use. The commonly used special case of zero tangential electric field is described in the Perfect Electric Conductor section.

Enter the value or expression for the components of the Electric field E0 (SI unit: V/m).

To display this section, click the Show button () and select Advanced Physics Options. For information about the Constraint Settings section, see Constraint Settings in the COMSOL Multiphysics Reference Manual.