Use the Electromagnetic Heating multiphysics coupling () to account for electromagnetic volumetric and surface losses in the heat equation.

See Electromagnetic Heating in the COMSOL Multiphysics Reference Manual for a description of this multiphysics coupling in the context of Joule heating and laser heating modeling.

See Electromagnetic Heating in the AC/DC Module User’s Guide for a description of this multiphysics coupling in the context of induction heating modeling.

See Electromagnetic Heating in the RF Module User’s Guide for a description of this multiphysics coupling in the context of microwave heating modeling.

when any of the following interface is added together with Heat Transfer in Solids (or another version of the Heat Transfer interface):
Electric Currents
Electric Currents, Shells
Magnetic Field Formulation
Magnetic Fields
Magnetic and Electric Fields
Rotating Machinery, Magnetic