Domain, Boundary, Edge, Point, and Pair Nodes for the Electric Currents Interface
The Electric Currents interface has these domain, boundary, edge, point, and pair nodes available from the Physics ribbon toolbar (Windows users) or Physics context menu (Mac or Linux users). You can also right-click to access the context menu (all users).
In general, to add a node, go to the Physics toolbar, no matter what operating system you are using. Subnodes are available by clicking the parent node and selecting it from the Attributes menu.
About the Boundary Conditions
The exterior and interior boundary conditions listed in Table 3-1 are available. The relevant physics interface condition at interfaces between different media and interior boundaries is continuity; that is,
which is the natural boundary condition.
Available Nodes
These nodes are available for this physics interface, listed in alphabetical order. Also see Table 3-1 for a list of interior and exterior boundary conditions, including edge, point, and pair availability.
1This feature is available with the Piezoresistivity, Domain Currents multiphysics interface, which requires the MEMS Module.
These nodes are described for the Electrostatics interface:
 
In the COMSOL Multiphysics Reference Manual, see Table 2-4 for links to common sections and Table 2-5 for common feature nodes. You can also search for information: press F1 to open the Help window or Ctrl+F1 to open the Documentation window.
For axisymmetric components, COMSOL Multiphysics takes the axial symmetry boundaries (at r = 0) into account and automatically adds an Axial Symmetry node to the model that is valid on the axial symmetry boundaries only.
Table 3-1 lists the interior and exterior boundary conditions available with this physics interface. It also includes edge, point, and pair availability.