PHYSICAL INTERPRETATION OF INTERFACE AND BOUNDARY CONDITIONS OF ELECTROMAGNETIC FIELD

When solving electromagnetic field problems, it is usual to introduce the electric and magnetic scalar and vector potentials. So, the solution of the Maxwell equations can be derived back to the solution of differential equation relative to the suitable potential. However, the boundary and interface conditions refer to the field intensities. The aim of the paper is to present and summarize the boundary and interface conditions relative to the potentials based on physical meaning, derived them from the conditions referring to the field intensities. Such an interpretation of boundary and interface conditions makes it easier to take them into account by the use of variational methods