These lecture notes have been prepared as a means of remote instruction during the Covid-19 emergency. They have the format of annotated lecture slides. There are 36 pdf files, named **Lecture 1** through **Lecture 36**, one file for each lecture of the semester. Each page shows one lecture slide with comment underneath that are similar to oral remarks given by the instructor in the auditorium. The last page shows the quiz for that lecture.

Video presentations of these lectures are available on YouTube. Search "YouTube Rob Coyne PHY 204"

#### Submissions from 2020

01. Introduction. Electric charge. Electrostatic force, Gerhard Müller and Robert Coyne

02. Coulomb force in 2D. Electric field. Superposition principle, Gerhard Müller and Robert Coyne

03. Motion of charged particles. Electric dipole, Gerhard Müller and Robert Coyne

04. Electric field of extended objects. Electric flux, Gerhard Müller and Robert Coyne

05. Gauss’s law for the electric field with applications, Gerhard Müller and Robert Coyne

06. Applications of Gauss's law. Charged conductors at equilibrium, Gerhard Müller and Robert Coyne

07. Applications of Gauss's law to charged conductors at equilibrium, Gerhard Müller and Robert Coyne

08. Electric potential and potential energy, Gerhard Müller and Robert Coyne

09. Applications of electric potential and energy conservation, Gerhard Müller and Robert Coyne

10. Electrostatic field and electric potential, Gerhard Müller and Robert Coyne

11. Electric potential of conductors, electric dipole, and point-charge configurations, Gerhard Müller and Robert Coyne

12. Capacitance of and energy stored in capacitors. Parallel and series connections, Gerhard Müller and Robert Coyne

13. Analysis of capacitor circuits at equilibrium, Gerhard Müller and Robert Coyne

14. Capacitors with dielectrics, Gerhard Müller and Robert Coyne

15. Electric current and current density. Resistivity, resistance, and resistor, Gerhard Müller and Robert Coyne

16. Analysis of one-loop resistor circuits, Gerhard Müller and Robert Coyne

17. Kirchhoff's rules. Two-loop resistor circuits, Gerhard Müller and Robert Coyne

18. Analysis of RC circuits. Charging and discharging processes, Gerhard Müller and Robert Coyne

19. Magnetic force on currents or moving charged particles, Gerhard Müller and Robert Coyne

20. Magnetic force applications, Gerhard Müller and Robert Coyne

21. Torque acting on current loops. Magnetic dipole moment, Gerhard Müller and Robert Coyne

22. Applications of magnetic force and torque. Hall effect, Gerhard Müller and Robert Coyne

23. Sources of magnetic field. Law of Biot and Savart. Simple applications, Gerhard Müller and Robert Coyne

24. Magnetic field of current configurations. A glimpse of relativity, Gerhard Müller and Robert Coyne

25. Gauss's law for the magnetic field. Ampere's law with applications, Gerhard Müller and Robert Coyne

26. Applications of Ampere's law and the law of Biot and Savart, Gerhard Müller and Robert Coyne

27. Motional EMF. Faraday's law with applications., Gerhard Müller and Robert Coyne

28. Lenz's rule. Applications of Faraday's law, Gerhard Müller and Robert Coyne

29. Inductance and energy stored in inductors. Self-induction. Mutual induction, Gerhard Müller and Robert Coyne

30. Analysis of RL circuits. Current buildup and shutdown processes, Gerhard Müller and Robert Coyne

31. LC oscillator and mechanical analogue. Electric/magnetic energy conversion, Gerhard Müller and Robert Coyne

32. Single-device ac circuits. RLC series circuit, Gerhard Müller and Robert Coyne

33. RLC parallel circuit. Resonant ac circuits, Gerhard Müller and Robert Coyne

34. Applications of ac circuits. Transformer. Amplitudes versus rms value, Gerhard Müller and Robert Coyne

35. Maxwell's equations. Displacement current. Wave equation, Gerhard Müller and Robert Coyne

36. Electromagnetic waves. Poynting vector. Another glimpse of relativity, Gerhard Müller and Robert Coyne