Familiarity with Lagrangian and Hamiltonian formulations is necessary for the final chapters books.google.com Introductory Physics:
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Wolfgang K. H. Panofsky and Melba Phillips were both renowned physicists who made significant contributions to the field of electromagnetism. Panofsky, a German-American physicist, was known for his work on particle physics and electromagnetism, while Phillips, an American physicist, was a prominent figure in the development of quantum mechanics. Their collaboration on "Classical Electricity and Magnetism" was motivated by the need for a comprehensive textbook that would provide a clear and concise introduction to the subject. check your university’s library portal (e.g.
: Unlike many modern texts that begin by postulating Maxwell’s equations, Panofsky and Phillips derive them from fundamental empirical laws such as those of Coulomb, Ampère, and Faraday. a German-American physicist
The authors never lose sight of the fact that EM is an experimental science. The book provides excellent context on how theoretical equations manifest in laboratory settings.
While the search term often accompanies these queries, it is important to respect intellectual property. The Dover edition of Classical Electricity and Magnetism is reasonably priced ($25–35 USD). If you need a free PDF, check your university’s library portal (e.g., SpringerLink, ProQuest, or your institution’s digital repository). Many libraries have licensed digital copies for student use. Ethically, supporting the publisher ensures that classic texts remain in print for future generations of physicists.