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December 27, 2014
Hans P. Paar
4C SYLLABUS
NEWS ITEMS, LAST ON TOP
12/27/2014: Updated course grades have been posted.
12/22/2014: The scores for the Final and for the course as a whole have been posted as well as the letter
grades for the course. The letter grades are as follows: >420: A+, 391-420: A, 361-390 A-, 331-360: B+,
301-330: B, 271-300: B-, 241-270: C+, 211-240: C, 121-210: D, <121: F. There was only one F in the course
because the others shown in the histogram withdrew from the course. If you are not completely happy with
your letter grade: 4C is considered by many the most difficult of all five Physics 4 quarters. (The runner-up
is 4E, Modern Physics.)
The Finals and some quizzes are ready for pickup outside my CASS office.
12/19/2014: The solutions to the Final have been posted. Grading is in progress. The grades will be posted
next Monday 12/22 evening.
12/17/2014: After today’s Final a pocket calculator was left behind. I have it in my office.
The Final has been posted.
12/15/2014: I have been asked about whether a crib sheet is allowed in the Final. It is not. If you need a
formula please ask.
12/12/2014: The location of the Final is CH 222. The time is as announced earlier: Wednesday 12/17 11:30
am - 2:30 pm.
The material of the Final will include Chapters 21 - 30 inclusive as well as Chapter 31-2 and 31-3. The
Displacement Current of Chapter 31-1 will not be part of the Final. Section with a * should be read but not
studied in detail.
There will be an extra Discussion Session next Monday 12/15 at 4:00 pm in SERF 383.
The solutions to the Chapter 29 and 30 homework assignments are posted.
12/8/2014: The grading key, the grades, and the histogram for Quiz #4 have been posted.
12/5/2014: The solutions to Quiz #4 have been posted.
12/2/2014: The solutions to the Chapter 27 and 28 homework assignments are posted.
11/26/2014: Next Tuesday 12/2/14 we will hit the ground running with new material. I am mentioning this
because quite a few students were on early Thanksgiving leave last week and we do not have the time to
revisit last week’s material. Please catch up on that material by yourself using GaussStokes.pdf. We have
finished the Biot-Savart Law and examples of section 28-6 and will continue with sections 27-3 through 27-5,
28-2 and 28-5.
I have posted some additional homework problems in HomeworkChap28.pdf. They have to do with the
vector potential, a topic not treated in Giancoli. I have reposted GaussStokes.pdf because I found to my
chagrin that some factors 4π were missing in the Biot-Savart Law in Section 7.
The grades have been reposted and should reflect successful grade appeals. Please check that your entries
are correct and if not contact Yury. Keep all quizzes until the final course grade has been assigned and
checked to be correct.
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11/19/2014: The Final has been set for Wednesday 12/17 from 11:30 am - 2:30 pm. The location will be
announced no later then Week 9. Please plan your vacation travels accordingly.
The material from Chapters 27 and 28 are being scrambled (out of order). Therefore the homework assignments are not correct. In some cases problems are listed for which the material has not been presented in
class. Use your judgement to determine which problems are appropriate for the material presented in class
up to that moment.
11/17/2014: The grading key, the grades, and the histogram for Quiz #3 have been posted. In addition a
histogram of the total of the Quiz #1, #2, and #3 (HistGradesQuiz123.pdf) has been posted.
11/16/2014: Contrary to last week there will be an office hour Monday 11/17 from 4:00 - 6:00 pm.
11/13/2014: The solutions to Quiz #3 have been posted.
An augmented version of nablaoperator.pdf and a new document GaussStokes.pdf have been posted. The
latter contains material that we will use starting with the lecture on Tuesday 11/18/2014 when we start
with magnetostatics. This material is not in the textbook and is provided so that you do not have to take
detailed notes in class but can concentrate on following the material when it is presented in the lecture.
11/8/2014: The solutions to the homework assignments for Chapter 25 and 26 have been posted.
11/7/2014: Next Tuesday 11/11 is a UCSD Holiday so no lecture. Next Wednesday 11/12 is dedicated to
Quizz #3. This quizz will cover the material in the book up to and not including section 26-5. The Thursday
11/13 lecture will be given by Dr. Eric Michelsen.
11/5/2014: A corrected spreadsheet with grades for Quiz #2 has been uploaded. Please check your score
against the spreadsheet and report error(s) to the grader or the TA.
A document called GaussStokes.pdf summarizing Gauss’ and Stokes’ laws has been uploaded as well. Its
Section 4 is ahead of where we are in class but equation (4) is familiar and even (6) has made a brief
apperance when we talked about the fact that potential differences can only be defined for fields for which
the right side of (6) is identical zero. Such fiels are called ”conservative”.
11/3/2014: The first hour of tomorrow’s Tuesday 11/4 Problem Session will be dedicated to vector calculus. We will end with Gauss’ and Stokes theorems. The material, except for Gauss and Stokes, is in the
nablaoperator.pdf file on the 4C website. Familiarity with the material up to and including Eq.(30) will be
essential to understand magnetism. We will start magnetism on 11/25, a little later than the schedule calls
for. Please use the time between now and then to (re-)study that material.
A spreadsheet GradesAnonymQuiz2.xlsx as well as the solutions to Chapter 24 homework assignments have
been uploaded.
10/30/2014: Quiz #2 has been uploaded as well as its solutions and the grading key.
10/28/2014: Quiz #2 will cover Chapters 21, 22, and 23 and includes all material including the material
that I did not cover in class. The solutions to the Chapter 23 homework assignments are posted.
10/24/2014: Three files have been uploaded that contain information about Quiz #1: The grading key
GradingKey.pdf shows partial credit assignments, a spreadsheet GradesAnonym.xls that shows grades by
code number, and a histogram of grades in HistGradesQuiz1.pdf so you can see how you did relative to
others in the class. Please check your Quiz grades against that spreadsheet and let me know of any problem.
10/21/2014: The solutions to the Chapter 22 homework assignments are posted.
10/20/2014: The first hour of tomorrow’s Tuesday 10/21 Problem Session will be dedicated to vector algebra
(vector product of two vectors in terms of a determinant) and the beginnings of vector calculus.
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The second hour will be for discussion and problem solving.
10/16/2014: Problem 4d was missing from the solutions to Quiz #1. Corrected.
10/15/2014: Yury has found two problems with the solutions to the Homework posted on 10/14/2014:
Problem 13: The force F3 on the third charge is not calculated; Problem 34: The answer is 10 times less,
7.57 × 105 , not 7.57 × 106 .
Quiz #1 and its solutions (courtesy of Yury) have been posted.
10/14/2014: The solutions to the Chapter 21 homework assignments are posted.
10/13/2014: Dr. Paar has laryngitis and can not talk. Today’s 4C office hour is therefore canceled. Tomorrow’s lecture will proceed with the aid of the audio system. For this reason the Tuesday and Thursday
lectures will be moved to CENTR 222, effective Tuesday 10/14/2014.
10/4/2014: The Wednesday lecture time slot will be used for the four quizzes. The schedule has been
updated accordingly. At the request of the TA, the Monday Problem Session has been moved to a different
time slot. As a consequence the location had to be changed as well. The syllabus has been updated with
the new information. The office hours of the instructor and the TA are shown below.
10/3/2014: There is a lecture on Wednesdays from 11:00 - 11:50 am that I did not list in the Syllabus. It is
now added.
10/2/2014: Next Monday’s ”Problem Session” will be dedicated to vector algebra and vector calculus. Please
refer to the two documents vectoralgebraclean.pdf and nablaoperatorclean.pdf and the discussion below on
what from these documents we need right away and what we need later.
A grader has been assigned to the course, see below. You still need to work with the TA, not the grader, for
grading appeals.
9/29/2014:
Discussion and homework sessions information is added below. There is not much difference between the
two: we will adress whatever issue arises in either one of the two.
9/27/2014:
New information is added lower in this syllabus.
9/25/2014:
We do not fit in the originally scheduled room WLH 2204 so the Registrar has found another room: Mandeville B150. The room is located one floor down from the ground floor.
9/23/2014:
A document reviewing vector algebra has been posted:
http://physics.ucsd.edu/∼hpaar/4C/vectoralgebraclean.pdf
This is introductory to vector calculus and should be studied prior to the start of the Physics 4C course.
7/22/2014:
A new version of the document on vector calculus has been posted.
COURSE ORGANZATION
Course instructor:
Hans P. Paar
hpaar@ucsd.edu (e-mail)
SERF 322A (office)
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858 246 0405 (office phone)
Teaching assistant:
Yury Kiselev
ykiselev@ucsd.edu (e-mail)
MH 5202 (office)
858 242 9171 (phone)
Grader:
Jingquiang Ye
jiy171@ucsd.edu (e-mail)
Lectures:
Tuesday-Thursday 11:00 am - 12:20 pm
CENTR 222 (not WLH 2204)
Wednesday 11:00 - 11:50 am
WLH 2204 (not Mandeville B150)
Problem sessions:
Tuesdays 7:00 - 8:50 pm
CENTR 217B
Discussion sessions:
Wednesdays 5:00 - 5:50 pm
WLH 2204
Final’s date:
Wednesday 12/17 11:30 am - 2:30 pm
CH 222
Office hour:
Mondays 4:00 - 6:00 pm (instructor)
Tuesdays 1:00 - 3:00 pm (TA)
Course URL:
See Physics Department’s website
Textbook:
Douglas C. Giancoli, Physics for Scientists and Engineers (2008)
We will do Chapter 21-1 through Chapter 31-3
There will be homework assignments each week and four quizzes during the quarter in alternate weeks.
The first quizz is on October 15. The others are on October 29, November 12, and December 3. You are
encouraged to work together on the homework sets. The homework will not be collected or graded. Some
solutions will be posted in http://physics.ucsd.edu/∼hpaar/4C/
COURSE OUTLINE
Physics 4C covers Electricity and Magnetism using multivariable calculus and vector calculus. We will
cover Volume 2 Chapter 21-1 through Chapter 31-3 of the textbook listed above. If you have purchased the
complete volume 1-3 of Giancoli you are in business. If you purchased Volume 1 Chapter 1 through Chapter
20 for Physics 4B you should buy Volume 2 rather than the complete volume 1-3 because (i) you already
paid for Volume 1 and (ii) who knows which textbook will be assigned for Physics 4D and 4E.
The catalog states that Math 20C (Multivariable Calculus) is a prior requirement while Math 20E (Vector Calculus) may be taken concurrently with Physics 4C. We need the nabla operator from the beginning
of the course and Gauss’ and Stokes’ theorems very soon thereafter. Math 20E starts with a review of multivariable calculus before introducing the nabla operator about halfway the course and Gauss’ and Stokes’
theorems toward the end. We can not wait that long before using the nabla operator so a brief document
is provided to introduce it, see http://physics.ucsd.edu/∼hpaar/4C/nablaoperatorclean.pdf. Especially students taking Math 20E concurrently with Physics 4C but also those that have already completed Math 20E
are urged to study this document carefully prior to the start of the Physics 4C course. The material staring
in Section 6, Eq (19) will not be needed until Week 6.
Vector algebra is essential for the understanding of vactor calculus. Another brief document is provided,
see http://physics.ucsd.edu/∼hpaar/4C/vectoralgebraclean.pdf. Section 5 will not be needed until Week 6.
Gauss’ and Stokes’ Theorems will be introduced in class when the need for them arises.
COURSE SCHEDULE
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The class schedule and homework assignments are listed below:
Week
Dates
Chapter
0
10/02-10/03
21
1
10/06-10/10
21
7, 11, 13, 16, 32, 34, 40, 47, 48, 49, 58, 59, 62
2
10/13-10/17
10/15
22
4, 9, 10, 19, 20, 21, 24, 29, 31, 34, 38
Quiz # 1
3
10/20-10/24
23
3, 7, 15, 22, 26, 35, 51, 54, 61
4
10/27-10/31
24
25
6, 15, 18, 27, 29, 31, 34, 44, 49, 58, 60
7, 8, 9
Quiz # 2
5
11/03-11/07
25
26
12, 23, 32, 36, 39, 45, 49, 57
12, 17, 19, 34, 38, 40, 46, 50
6
11/10-11/14
11/11
11/12
27
6, 8, 16, 20, 23, 33, 35, 36
Holiday
Quiz # 3
7
11/17-11/21
28
4. 7, 18, 19, 26, 28, 31, 34, 35, 37
8
11/24-11/26
11/27-11/28
29
7, 8, 11, 12, 20, 28, 33, 38, 48, 54
Thanksgiving
9
12/01-12/05
12/03
30
3, 9, 12, 21, 24, 27, 34, 37, 46, 53, 65
Quiz # 4
10
12/08-12/12
31-1,2,3
12/17
Final
10/29
Homework
4, 6
11:30 am - 2:30 pm, CH 222
FURTHER INFORMATION
Quizzes will be closed book. All students are required to purchase bluebooks for taking quizzes. At the
first quizz you will be assigned a 3-digit code number. Your assigned code number and course number (4C)
should be written on the cover of your bluebook. Do not write your name on the bluebook for confidentiality
reasons as the bluebooks will be returned together. Write your answers in ink, not pencil. You will not
loose points when you cross out incorrect text. You will be able to collect your quizz at the end of a lecture.
Solutions to the quizzes and grades by code number will be posted on the 4C webpage. Please check your
grades promptly to make sure they are recorded correctly.
Appeals to the grading of the quizzes should be made in writing within one week from the day the
graded quizzes were returned. Do not write in the bluebook but rather attach a sheet of paper with your
appeal and give it to the TA. Grade changes will only be considered if the quizz is written in ink, not pencil.
Contact the instructor if a problem is not resolved after a discussion with the TA.
The three quizzes with the highest scores will be counted toward the course grade so you can drop one
quizz without penalty. Therefore there will be no makeup quizzes. In case of illness, documented with a
letter from a physician or nurse, an accommodation will be made if more than one quizz is missed because
of the illness.
The course grade will consist of 60% from the three out of four quizzes and 40% from the Final. There
will be no makeup Final so appraise yourself of the Final’s date before making plans to leave town.
Please remind yourself of the ”UCSD Policy on Integrity of Scholarship” in the UCSD catalog. I do not
expect to encounter a problem in this area but if I do these rules will be strictly enforced.
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