Enroll Course: https://www.coursera.org/learn/dianci-2
The course titled 《电磁学下——恒磁场与时变电磁场》 on Coursera offers a detailed exploration of advanced electromagnetism topics, serving as a vital continuation after the foundational 《电磁学》. This course is structured into six modules, covering a broad spectrum from constant magnetic fields to electromagnetic waves, making it an ideal choice for students aiming to deepen their understanding of electromagnetism.
The first module on the basic laws of static magnetic fields provides historical insights and fundamental principles, including magnetic induction and key theorems such as Gauss’s law for magnetism and Ampère’s law. These are essential for understanding how magnetic fields are generated and characterized.
The second module on magnetic forces elaborates on the Ampère force, Lorentz force, and the motion of charged particles in magnetic fields, linking classical physics to modern applications like cyclotron accelerators and the quantum Hall effects—topics that have significantly influenced scientific progress.
In module three, the course dives into magnetic media, discussing magnetization, permeability, and boundary conditions across different types of magnetic materials, including ferromagnetic, paramagnetic, and diamagnetic substances. This section effectively combines theory with practical boundary analysis.
The fourth module on electromagnetic induction revisits well-known concepts while introducing advanced ideas such as vortex electric fields, self-induction, mutual induction, and magnetic energy. It emphasizes the field energy density and the dynamic nature of inductive circuits, crucial for understanding real-world electromagnetic systems.
The fifth module covers alternating current and AC circuits, focusing on impedance, resonance, and power aspects, which are pivotal in electrical engineering and technological applications. It introduces complex representations and phasor diagrams that help in visualizing AC phenomena.
Finally, the sixth module discusses electromagnetic waves and the historical development of Maxwell’s theory, including the derivation and properties of electromagnetic waves in free space. This comprehensive overview helps students appreciate the unity of electromagnetic phenomena.
The course is rich in exercises and self-assessment quizzes, encouraging active learning and mastery of concepts. The modular design allows learners to focus on areas of interest or difficulty, enhancing the learning experience.
Given its depth, clarity, and practical emphasis, I highly recommend this course to physics students, electrical engineers, and anyone interested in electromagnetism. It not only deepens theoretical understanding but also connects theory with technological applications, making it an invaluable resource for advanced learning and professional development.
Enroll Course: https://www.coursera.org/learn/dianci-2