PHYS 2113 — General Physics for Technical Students: Electromagnetism — Fall 2014

SECTION 1: Mark Wilde

Class Date/Time → 9:30AM–10:20AM M W F
Class Location → NICHOLSON 109
Web Assign Class Key → lsu 7071 4383

SECTION 2: Jonathan Dowling

Class Date/Time → 11:30AM–12:20PM M W F
Class Location → NICHOLSON 109
Web Assign Class Key → lsu 8181 3713

SECTION 3: Jorge Pullin

Class Date/Time → 01:30PM–02:20PM M W F
Class Location → NICHOLSON 109
Web Assign Class Key → lsu 9088 4324

SECTION 4: Manal Abdelwahab

Class Date/Time → 03:30PM–04:20PM PM M W F
Class Location → NICHOLSON 109
Web Assign Class Key → lsu 8951 6307

SECTION 5: Dubravka Rupnik

Class Date/Time → 09:00AM–10:20AM T Th
Class Location → NICHOLSON 109
Web Assign Class Key → lsu 2652 0202

SECTION 6: Manal Abdelwahab

Class Date/Time → 10:30AM–11:50AM T Th
Class Location → NICHOLSON 109
Web Assign Class Key →lsu 0751 1275

SECTION 7: Dubravka Rupnik

Class Date/Time → 12:00PM–1:20PM T Th
Class Location → NICHOLSON 109
Web Assign Class Key → lsu 2309 5745

LAB: PHYS 2109

You must register for the lab as a separate course from PHYS 2113.

You must attend the lab the first week of class or you will be dropped.

Most engineering students do NOT need to take PHYS 2109 lab.  If you do need to take it, it will be indicated on your flowchart.  If you have registered for PHYS 2109 this semester, you have received several reminders that you must show up in lab this week if you want to keep your place IN THE LAB. Your registration in PHYS 2113 is completely disconnected from this.  The announcement you may have heard in PHYS 2113 was just one more reminder about the lab.  Again, you do not have to register for PHYS 2109 to keep your place in PHYS 2113.


Fundamentals of Physics
, by Halliday, Resnick, and Walker, 9th edition (Wiley).

Grade of C or better in PHYS 2110; grade of C or better in either MATH 1552 or MATH 1553.


  • This course covers chapters 13, 21–33 of your textbook. There are a few sections that will be omitted. This is the introductory course primarily for technical science majors (physics, chemistry, geology, or engineers). It extends the material from PHYS 2110 to discuss electrical and magnetic phenomena, electromagnetism, and gravitation, all arising from the idea of a physical “field.” It will build your problem solving skills and your ability to apply mathematical principles to describe nature.
  • You are required to read the assigned textbook material before coming to class.
  • Attendance at lectures is highly encouraged! The concepts and approaches to problem solving will be developed through the readings, lectures, demonstrations and class discussion. If you need to leave early, let me know ahead of time. To encourage participation, there will be daily in-class quizzes (see below)
  • It is the student’s responsibility to be familiar with the University Code of Conduct that details the university’s policy and disciplinary action regarding academic dishonesty.
  • Students with special needs or accommodations should contact the Office of Disability Services (112 Johnston Hall) early so that any necessary accommodations can be arranged ASAP.

Quizzes or other in class participation activities will be given in each lecture.


  • Homework is the most important part of the course!
  • Homework is your physics “practice.” You will do well in the course if you do all the homework on your own since you will then be able to answer the questions and problems on the 3 tests and the final exam.
  • We will use the WebAssign computerized homework system at
  • The first 14 days are free (grace period). During this period, use WebAssign to do your homework.
  • You can register with a credit card online or you can purchase a registration card at the LSU Bookstore. Ask at the Customer Service Desk. You can also buy web access to the text so you do not need to buy the book (see Wiley for details)!
  • You will be given a maximum of 3 submissions. Only the last submission will be graded, no points off for multiple submissions. Your semester percentage score will be used in computing the homework contribution to your grade.
  • Do the homework daily. Often the number of problems (20-30) is too large to do in one sitting. It is best if you do the homework the same day that the material is covered in class.
  • Get in the habit of carrying the units through the solution from start to finish. Units are required as part of the answer and will definitely be required on the tests.
  • Homework will typically be due on Friday 11:59 pm. It will cover all of the material presented in lecture through the week. The WebAssign cutoff day and time is firm for full credit.


  • There will be three in-class tests (closed book) on material since the last test. Tests will consist of multiple-choice worked/concept questions and written worked problems. Because partial credit may be given, it is important that you show all work and give explanation and intermediate steps. An answer without showing the appropriate steps through a calculation will not be accepted.
  • Greater than 50% of the exam problems will come from the assigned homework.
  • Necessary constants and most formulae will be given on a formula sheet that will be given; it will be available before the exams.
  • You will need a scientific calculator. You may not use a calculator app on your phone or on your tablet.
  • During your test, the only electronic device you may have with you at your seat is a scientific or graphing calculator. You may not have your cell phone, tablet, smartphone, PDA, pager, digital camera, computer, or any other device capable of taking pictures or video, sending text messages, or accessing the Internet. This means not just on your person, but close enough to you that you could reach it during the test. Any student found with such a device during a test will be assumed to be violating the LSU Honor Code and will be referred to the Dean of Students for Judicial Affairs.
  • There will be no make-up exams and no exam scores will be dropped from a student's grade. If you miss an exam and you have a valid and documented excuse, as per LSU Student Policy 22, you will be allowed to substitute the grade on that exam for the average of your other exam grades (midterm and final exams).



  • The two-hour Final Exam will be cumulative with extra emphasis (approximately 1/3 of the questions and problems) on material since the last test.
  • Same format as the in-class tests with twice as many questions and problems.
  • Same restrictions on electronic devices.

5:30-7:30PM MON 08 DEC 2014 in Cox Auditorium  


Midterms - 100 points each
300 points
Final Exam - 200 points
200 points
Homework - 75 points
75 points
In Class Quizzes - 25 points
25 points

600 points
    Your numerical grade will be the total number of points you obtain, divided by 6.0.
    Given your numerical grade, your letter grade will be at least the following:
A: 90-100%
B: 75-89%
C: 60-74%
D: 50-59%
F: 49-0%

This course is a general education course in the Natural Sciences Area, and the material in the course will address the student’s achievement of this General Education Competency: LSU graduates will employ scientific and mathematical methods and technology in the resolution of laboratory and real-world problems.

LECTURE SCHEDULE: (One topic per week)

  1. Ch. 13: Gravitation, Newton’s Law of Gravity, superposition, gravitational potential energy, Gauss’s Law, Kepler’s Laws, escape speed, orbital mechanics (i.e., Rocket Science)
  2. Ch. 21: Electric charge, conductors and insulators, Coulomb’s Law, quantization and conservation principles for charge
  3. Ch. 22: Electric fields, field maps, fields due to various charge geometries, point charges and dipoles in an electric field
  4. Ch. 23: Electric flux, Gauss’s Law for electric fields, Coulomb’s Law from Gauss’s Law, isolated charged conductors, considerations of symmetry
  5. Ch. 24: Electric potential energy and work, electric potential, equipotentials, potentials due to discrete and continuous charge distributions, isolated conductors, determining the electric field from the potential
  6. Ch. 25: Capacitors and capacitance, series and parallel arrangements, stored energy, dielectric materials, Gauss’s Law with dielectric
  7. Ch. 26: Electric current, current density, non-perfect conductors, resistivity and resistance, Ohm’s Law, power and energy in electric circuits, semiconductor materials, superconductors
  8. Ch. 27: DC circuits, energy and work, electromotive force, single and multi-loop circuits, parallel and series combinations of resistances, Kirchoff’s Laws, RC circuits, time constant
  9. Ch. 28: Magnetic fields, forces on moving charges, crossed fields, Hall effect, cyclotrons, force and torque on current carrying wires and loops, magnetic dipoles and dipole moment
  10. Ch. 29: Sources of magnetic field, Biot-Savart Law, calculating the magnetic field for various current geometries, Ampere’s Law, consideration of symmetry, forces between parallel currents, solenoids and toroids, a coil as a dipole
  11. Ch. 30: Electromagnetic induction, Faraday’s Law, Lenz’s Law, induced electric fields, induction and inductors, RL circuits and time constants, energy stored in magnetic fields, energy density in magnetic fields, mutual inductance
  12. Ch. 31:Electromagnetic oscillators, series RLC circuit, transformers, forced oscillators, resonant circuits, damped oscillators
  13. Ch. 32: Gauss’s Law for magnetism, displacement currents, induced magnetic fields, Maxwell’s equations, magnets and magnetic materials.
  14. Ch. 33: Electromagnetic waves, electromagnetic spectrum, travelling EM waves, Poynting Vector, energy transport, radiation pressure, polarization, reflection and refraction.

Send Comments or Questions to
Copyright 2014. All rights reserved. Official Web Page of the LSU Department of Physics & Astronomy.

Updated:Mon, 15-Dec-2014 9:02 AM

LSU Home Page LSU Search LSU PAWS link LSU A-Z