The Surface Current node adds a boundary condition for a surface current density
Js:
These expressions apply to exterior and interior boundaries respectively. Add a contribution as a Harmonic Perturbation by right-clicking the parent node or clicking
Harmonic Perturbation in the
Physics toolbar. For more information see
Harmonic Perturbation — Exclusive and Contributing Nodes in the
COMSOL Multiphysics Reference Manual.
Enter values or expressions for the Surface current density Js0 (SI unit: A/m) coordinates. The defaults are 0 A/m.