Basic Electromagnetism and its Applications

1 Introduction.- Structure of the book.- Understanding fields.- 2 Electrical conduction and currents.- Current and charge.- Conduction equations.- Current as an example of flux.- Models of electrical conduction.- Resistive circuit components.- 3 Potential and the electric field.- Potential (voltage) in a circuit.- Electric field.- Conduction and charge mobility.- Potential and field in space.- Acceleration of charged particles in an electric field.- 4 Charge and electric flux.- Capacitance.- Electric flux and permittivity.- Calculations in electrostatics.- 5 Electric fields in materials.- Polarization and dielectrics.- Electrostatic force and energy.- Capacitor design.- Further applications.- 6 Magnetic flux and circuits.- Electromagnetic induction.- Magnetomotive force, flux and reluctance.- Magnetic circuits.- 7 Magnetic vectors.- Vector B and flux.- Directional rules and Lenz’ law.- Magnetic scalar potential and vector H.- Predicting magnetic fields.- 8 Inductance and magnetic materials.- Self and mutual inductance.- Air-cored inductors.- Calculations in magnetism.- Magnetization.- Electromagnetic machinery.- Some applications.- 9 Magnetic energy and force.- Magnetic energy.- Reluctance force.- Permanent magnets.- Force from the motor effect.- 10 Electromagnetism and charged particles.- The Lorentz force.- The Hall effect.- Applications of the Hall effect.- Electron streams.- Acceleration of electrons.- Deflection and focusing of electron streams.- Some applications of electron streams.- 11 The electromagnetic field.- The time needed to establish a current.- Electromagnetic waves.- Electromagnetism and relativity.- Final comments.- The fundamental rules of electromagnetism.- Appendix: A brief note on integration.- Answers to problems.