PHY 272 (PHY 272 H) Spring 2016
Instructor: Luis A. Orozco, Computer and Space Science Building, room 2201,
phone (301) 405 9740, email: lorozco@umd.edu
Class hours: TuTh 12:30pm  1:45pm,
F 12:00 pm  12:50 pm
Classroom: Toll Physics 1201
Office hours: Monday 4:00 to 5:00 PM, Tuesday 10:00 to 11:00 AM
Honors students: We will set another session per week for further discussions.
Grader: TBD
Textbook: "Electricity and Magnetism", E. Purcell & D. Morin, 3rd
edition. The lectures will follow the book closely, but not exactly, and the
book is highly recommended; if you buy it you can go back to it in the future
as a source of physics understanding and intuition. The level of mathematical
sophistication required in this class is somewhat high. We will see many
concepts that show the strong connection between Physics and Mathematics.
General familiarity with vectors and their operations is expected at the
beginning of the course, and during the course you will have to develop an
understanding of vector calculus and multivariable calculus. A good source for
these topics is the free, online textbook "Mathematical Tools for
Physics", by J. Nearing, that can be found here. Chapters 6, 8, 9, and
13 are the relevant ones.
Grades: The grade will be based on frequent homework (20%), due on
Fridays at the beginning of class, and four partial exams (20% each). I will
drop your lowest grade out of the five components (homework and four exams) to
calculate your final grade.
Syllabus and objectives:
The goal of this class is to introduce
the electromagnetic fields and the mathematics used in their description,
understand the laws governing them (Maxwell's equations) and apply these laws
to a large variety of situations arising in several branches of physics,
astrophysics and technology. The specific topics covered and the level of
sophistication will be comparable to Purcell's book but it is unlikely we will
be able to cover all chapters. We will skip most of electric oscillating
current circuits (discussed in depth in PHY273), dielectrics and magnetic materials.
The study of fields of moving charges with be mostly qualitative. The homework
will have problems from the textbook and some from outside. The level of
difficulty will be higher than you have had in the past.
Date 
To read 
Topic 
HW 
Week
1 

Electrostatics: charges and fields 

26Jan 

(Snow day) 

28Jan 
1.11.4 
Intro, Electric charge, Coulomb's
law 

29Jan 
1.51.6 
Electric energy 

Week
2 

The Electric Field 

2Feb 
1.71.8 
Electric Field 

4Feb 
1.91.10 
Flux, Gauss's Law 

5Feb 
1.111.12 
Fields of Charge Distributions 
HW 1 
Week
3 

Continuos Charge Distribution 

9Feb 
1.1314 
Fields of Charge Distributions 

11Feb 
1.15 
Energy associated with Electric
Fields 

12Feb 
1.16 
Applications 
HW 2 
Week
4 

Electric Potential 

16Feb 
2.12.4 
Line integral, potential, field
from a potential 

18Feb 
2.52.6 
Charge distribuitons, and dipoles 

19Feb 
2.72.10 
Divergence and Gauss's Law 
HW 3 
Week
5 

Electric Potential 

23Feb 
2.102.13 
The Laplacian 

25Feb 

Synthesis/review 

26Feb 

First
Exam (Ch. 1 and 2) 
HW 4 
Week
6 

Electric Fields around conductors 

1Mar 
3.1, 3.2, 3.4 
Conductors and insulators 

3Mar 
3.53.6 
Capacitance 

4Mar 
3.7 
Energy Stored in a capacitor 
HW 5 
Week
7 

Electric Currents 

8Mar 
4.14.5 
Currents and Ohm's Law 

10Mar 
4.1 
Circuits 

11Mar 
4.11 
RC circuits 
HW 6 
Week
8 

SPRING BREAK 

15Mar 



17Mar 



18Mar 



Week
9 

Fields of Moving Charges 

22Mar 

Synthesis/review 

24Mar 

Second
Exam (Ch. 3 and 4) 

25Mar 
5.1 
The fields of Moving Charges 
HW 7 
Week
11 

The Magnetic Field 

29Mar 
6.16.2 
Magnetic Field 

31Mar 
2.142.17 
Curl and Stokes Theorem 

1Apr 
6.3 
The Vector Potential 
HW 8 
Week
12 

Circuits 

5Apr 
6.46.6 
Fields of current distributions 

7Apr 
6.86.9 
Rowland's Experiment and Hall
effect 

8Apr 
6.1 
Applications 
HW 9 
Week
13 

Electromagnetic Induction 

12Apr 
7.17.5 
Faraday discovery 

14Apr 

Synthesis/review 

15Apr 

Third
Exam (Ch. 6) 
HW 10 
Week
14 

Electromagnetic Waves 

19Apr 
7.67.8 
Inductance 

21Apr 
7.9 
Circuits 

22Apr 
7.1O 
Energy Stored in the magnetic
field 
HW 11 
Week
15 



26Apr 
9.19.2 
The displacement current 

28Apr 
9.3 
Maxwell's Equations 

29Apr 
9.4 
Electromagnetic Waves 
HW 12 
Week
16 



3May 
9.59.6 
Electromagnetic Radiation 

5May 

Synthesis/review 

6May 

Outgoing review 

Week
17 



10May 

Prof. Phillips Lecture 


Fourth Exam, May 17 1:30pm3:30pm (tentative) Ch. 7 and 9 
Useful references:
Some people like "
Div, Grad, Curl, and All That: An Informal Text on Vector Calculus",
Fourth Edition, H. M. Schey.
Academic
Integrity: The University of
Maryland, College Park has a nationally recognized Code
of Academic Integrity, administered by the Student Honor Council. This Code
sets standards for
academic integrity at Maryland for all undergraduate and graduate students. As
a student you
are responsible for upholding these standards for this course. It is very
important for you to be
aware of the consequences of cheating, fabrication, facilitation, and
plagiarism. For more information on the Code of Academic Integrity or the
Student Honor Council, please visit http://www.studenthonorcouncil.umd.edu/whatis.html.
Last modified February
1, 2016