Electrodynamics

About this programme

Content The aim of the course is to convey in-depth knowledge of electromagnetism. The course starts with a brief rehearsal of the electromagnetism in the static and stationary cases and then the electromagnetic induction is treated with Faraday's law. Maxwell's equations are then studied in the general time-dependent case. Starting from them, the continuity equation and Poynting's theorem, are derived, and their interpretation in terms of charge and energy conservation is discussed. Thereafter, electromagnetic waves are treated in vacuum and in matter, with applications to e.g. electromagnetic waves in waveguides. The course concludes with an introduction to radiation theory, where dipole radiation is treated. In connection with this, the retarded potentials, that are used to determine dipole radiation, are introduced. Electromagnetic problems are modelled and solved using the software Comsol Multiphysics within the laboratory part of the course. The course comprises a theory part of 5 credits and a computer laboratory part of 1 credits. Expected study results To fulfil the goals of knowledge and understanding, the student should be able to: - explain basic electromagnetic theory in terms of Maxwell's equations and conservation laws in terms of Poynting's theorem - describe basic electromagnetic phenomena such as induction and displacement current - explain the basic properties of electromagnetic waves in vacuum, in matter and in waveguides. In order to fulfil the goals for proficiency and ability, the student should be able to: - solve electromagnetic problems in centra