204: Elementary Physics II

Calculus-based introduction to electricity and magnetism, leading to Maxwell's equations. Electric fields and Gauss' law; magnetic fields and Ampere's law. Capacitance and inductance, DC and AC circuits. Electromagnetic waves.

These lecture slides are designed to be accompanied by oral explanations. Every semester some slides will be added or replaced.  The slides are in pdf and can be downloaded in entire sections named Slides 1 through Slides 22. Previous unit exams with solutions are compiled as Exams 1, Exams 2, and Exams 3. All slides can be opened in full-screen mode. Only major themes are mentioned in the list below. The four groups represent the four course units.

Slides 1:  Introduction. Electric charge. Coulomb force. Electric field.
Slides 2:  Motion of charged particles in electric field. Electric dipole.
Slides 3:  Electric field of continuous charge distributions. Electric flux.
Slides 4:  Gauss's law for the electric field with applications.
Slides 5:  Electric potential and potential energy.
Slides 6:  Electric potential and electric field.

Slides 7:  Capacitor and capacitance.
Slides 8:  Capacitors with dielectrics.
Slides 9:  Electric currents. Resistor, resistance, and resistivity.
Slides 10: Resistor circuits. Kirchhoff's laws.
Slides 11: RC circuits. Charging and discharging of capacitors.

Slides 12: Effects of a magnetic field: magnetic force.
Slides 13: Effects of magnetic field: torque. Magnetic dipole.
Slides 14: Sources of magnetic field: electric currents. Law of Biot and Savart.
Slides 15: Ampere's law for the magnetic field with applications
Slides 16: Faraday's law. Motional EMF. Lenz's rule.

Slides 17: Magnetic induction: inductor and inductance. Self/mutual induction.
Slides 18: RL circuits. Current buildup and shutdown.
Slides 19: LC and RLC oscillators. Electric vs magnetic energy.
Slides 20: Alternating current circuits. Impedance. Resonance.
Slides 21: Maxwell's equations. Electromagnetic waves.
Slides 22: A glimpse into relativity.

Exams 1: Theme from slides 1-6.
Exams 2: Themes from slides 7-11.
Exams 3: Themes from slides 12-16 (most) and slides 18-19 (some).

Some of the slides contain figures from the textbook, Paul A. Tipler and Gene Mosca, Physics for Scientists and Engineers, 5th/6th editions. The copyright to these figures is owned by W. H. Freeman.  We acknowledge permission from W.H. Freeman to use them on this course web page. The textbook figures are not to be used or copied for any purpose outside this class without direct permission from W. H. Freeman.

Remote instruction lecture notes (Fall 2020)

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 comments underneath that are similar to oral remarks given by the instructor in the auditorium. The last page shows the quiz for that lecture.

The four groups of lecture notes represent the four course units.

Lecture 1     Introduction. Electric charge. Electrostatic force.
Lecture 2     Coulomb force in 2D. Electric field. Superposition principle.
Lecture 3     Motion of charged particles. Electric dipole.
Lecture 4     Electric field of extended objects. Electric flux.
Lecture 5     Gauss's law for the electric field with applications.
Lecture 6     Applications of Gauss's law. Charged conductors at equilibrium.
Lecture 7     Applications of Gauss's law to charged conductors at equilibrium.
Lecture 8     Electric potential and potential energy.
Lecture 9     Applications of electric potential and energy conservation.
Lecture 10   Electrostatic field and electric potential.
Lecture 11   Electric potential of conductors, electric dipole, and point-charge configurations.

Lecture 12   Capacitance of and energy stored in capacitors. Parallel and series connections.
Lecture 13   Analysis of capacitor circuits at equilibrium.
Lecture 14   Capacitors with dielectrics.
Lecture 15   Electric current and current density. Resistivity, resistance, and resistor.
Lecture 16   Analysis of one-loop resistor circuits
Lecture 17   Kirchhoff's rules. Two-loop resistor circuits.
Lecture 18   Analysis of RC circuits. Charging and discharging processes.

Lecture 19   Magnetic force on currents or moving charged particles.
Lecture 20   Magnetic force applications.
Lecture 21   Torque acting on current loops. Magnetic dipole moment.
Lecture 22   Applications of magnetic force and torque. Hall effect.
Lecture 23   Sources of magnetic field. Law of Biot and Savart. Simple applications.
Lecture 24   Magnetic field of current configurations. A glimpse of relativity.
Lecture 25   Gauss's law for the magnetic field. Ampere's law with applications.
Lecture 26   Applications of Ampere's law and the law of Biot and Savart.
Lecture 27   Motional EMF. Faraday's law with applications.
Lecture 28   Lenz's rule. Applications of Faraday's law.

Lecture 29   Inductance and energy stored in inductors. Self-induction. Mutual induction.
Lecture 30   Analysis of RL circuits. Current buildup and shutdown processes.
Lecture 31   LC oscillator and mechanical analogue. Electric/magnetic energy conversion.
Lecture 32   Single-device ac circuits. RLC series circuit.
Lecture 33   RLC parallel circuit. Resonant  ac circuits.
Lecture 34   Applications of ac circuits. Transformer. Amplitudes versus rms values.
Lecture 35   Maxwell's equations. Displacement current. Wave equation.
Lecture 36   Electromagnetic waves. Poynting vector. Another glimpse of relativity.

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Compilation of individual lecture slides in the sequence used (excluding exam slides).

Introduction

Electric Field  and Coulomb's Law

Electric Flux and Gauss's Law

Electric Potential

Capacitor and Capacitance

Resistor and Resistance

RC Circuits

Magnetic Field

Magnetic Induction

RL Circuits

LC and RLC Oscillators

Alternating Current Circuits

Maxwell's Equations and Electromagnetic Waves

Relativity