The introductory course in theoretical physics covers all relevant areas for Bachelor's, Master's, or Diploma programs across seven volumes. Each volume thoughtfully conveys the theoretical and physical knowledge required for the respective semester. The third volume addresses electrodynamics in its inductive formulation. Mathematical content (vector analysis) is integrated into the text whenever it is essential for further understanding. The 10th edition of the volume includes more than 200 illustrations, new exercises and solutions, and has been thoroughly revised and updated.