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Electricity and Magnetism Physics 2220.002

Spring 2020

Lecture Section 002, Physics Room 102, MWF 10:00–10:50 a.m.

Recitation Sections 206, 207, 208, 209, 210

_______________________________________________________________________________________________________

Professor: Jose Perez

Office: Science Research Building, Room 239

Telephone: (940) 565-4679

E-mail: jperez@unt.edu

Office Hours: F 3–5 p.m., or by appointment

________________________________________________________________________________________________________

Text: Recommended text is University Physics, 15th, 14th or 13th Edition, by Young and Freedman. You are required to obtain access

to the Expert TA online homework system. Detailed instructions on accessing Expert TA are given on page 4, and in an appendix at

the end of the syllabus.

Other calculus-based physics texts are acceptable; the successful student will have a text.

Topics: This course will cover electric fields, direct-current and alternating-current circuits, magnetic fields and magnetic induction,

electric and magnetic properties of matter, electromagnetic waves, and geometrical and wave optics.

Attendance/Participation: You are expected to attend all lectures and recitations for the section in which you are enrolled; your grade

will depend on your attendance.

Exams: There will be three exams and a comprehensive final exam. There will be no make-up exams. The three exams will be common

to all sections and held from 4:00 p.m. to 5:50 p.m. in Env 130 on 02/14/2020, 03/20/2020 and 04/17/2020. Exam questions will be

based on material covered in the lectures, textbook, recitations and homework assignments. You must show all of your work on your

exam and final papers for full credit even on multiple choice questions. Questions pertaining to the grading of exams must be

directed to the instructor in writing within two weeks after the exams are returned. If you have a doctor’s excuse or an approved

university activity that conflicts with an exam, contact your instructor about an alternate examination time as soon as possible.

Homework: All homework will be posted, collected, and graded via the internet. You must access your assignment each week online,

work the problems, and submit your solutions to the server by the due date indicated on the server. Selected homework problems will

be discussed in recitation.

Grade: The grading in the course will be based on the total points earned from exams, homework, and lecture attendance. The point

values for each category are:

Exams 1st exam 14%; 2nd exam 14%; 3rd exam 14%; final 30%

an additional 8% will be added to your best exam

Homework 10%

Lecture/Recitation Attendance 10%

Total 100%

Letter grades will be assigned based on your final course score: 90 and above = A, 80-89 = B, 70-79 = C, 60-69 = D

Lab Credit: You must enroll separately in Physics 2240 for laboratory science credit.

Disability Accommodation: The University of North Texas makes reasonable academic accommodation for students with

disabilities. Students seeking accommodation must first register with the Office of Disability Accommodation (ODA) to verify their

eligibility. If a disability is verified, the ODA will provide you with an accommodation letter to be delivered to faculty to begin a

private discussion regarding your specific needs in a course. You may request accommodations at any time, however, ODA notices of

accommodation should be provided as early as possible in the semester to avoid any delay in implementation. Note that students must

obtain a new letter of accommodation for every semester and must meet with each faculty member prior to implementation in each

class. For additional information see the Office of Disability Accommodation website at http://www.unt.edu/oda. You may also

contact them by phone at 940.565.4323.

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The University of North Texas is on record as being committed to both the spirit and letter of federal equal opportunity legislation;

reference Public Law 92-112 – The Rehabilitation Act of 1973 as amended. With the passage of new federal legislation entitled

Americans with Disabilities Act (ADA), pursuant to section 504 of the Rehabilitation Act, there is renewed focus on providing this

population with the same opportunities enjoyed by all citizens.

UNT’s policy on Academic Dishonesty can be found on the UNT web site. Cheating, plagiarism or other forms of academic dishonesty

on an exam or final may result in a grade of zero on the exam or final, a reduction in course letter grade, or a grade of F for the course.

During an exam, the only allowed locations for computers, laptops, phones and tablets are in a book bag, case, or pocket, or on the floor.

The only allowed electronic device on your desk or not in an allowed location during an exam or final is a calculator with no wifi or

cellular capabilities. If you are observed to have your cell phone, tablet, laptop or computer outside of an allowed location during an

exam or final you may receive a grade of zero on the exam or final, a reduction in course letter grade, or a grade of F for the course.

The following are two lecture classroom rules that you should observe. During lectures, you are not allowed to have a computer, laptop,

tablet or cell phone on your desk unless it is an approved ODA accommodation. These devices are distracting to other students and the

lecturer. PowerPoint slides of all the lectures will be available before the lecture on Canvas. If you wish to take notes, please use a paper

and pen. If you wish to leave the class room during a lecture, you must use the backdoor. Use of the front door is distracting to other

students and the lecturer. Violation of either of these two rules may result in a 2% reduction of your final course score for each instance

of violation.

Core course objectives: In this course, students focus on describing, explaining, and predicting natural phenomena using the

scientific method. Strong emphasis is placed on student understanding of interactions among natural phenomena and the implications

of scientific principles on the physical world and on human experiences.

PHYS 2220 contributes the following core course learning objectives:

(1) Critical thinking

Students will gain the ability to use mathematics and the basic physical laws of nature to solve problems. This skill requires creative

thinking to identify and apply appropriate models to analyze physical phenomena.

(2) Effective communication

Students will gain proficiency in communicating ideas effectively in graphical and written form through submission of examinations;

and, in oral form through interactive question-answer problem-solving in the recitation sessions, and lecture discussion of concepts.

(3) Quantitative skills

Students will have extensive practice applying algebra, geometry, trigonometry, and differential and integral calculus in their analyses

of physics problems.

(4) Teamwork

Students are encouraged to work the homework in small teams. This will require students to consider different points of view and work

effectively with others.

Detailed Topics: This course will cover electric fields, direct-current and alternating-current circuits, magnetic fields and magnetic

induction, electric and magnetic properties of matter, electromagnetic waves, and introductory geometrical and wave optics. Students

will learn how to:

Calculate the electric field or potential of point charges and continuous charge distributions.

Understand and apply Gauss's law.

Calculate the magnetic field from continuous current distributions.

Understand the meaning and application of the integral form of Maxwell's equations.

Analyze simple DC circuits involving resistors, capacitors and inductors.

Compute the time constants for RC, RL and RLC circuits.

Trace rays through simple optical systems.

Physics 2220 Goals and Learning Strategies

The goals of instruction in Physics 2220 are to lead and guide you to understand and master the fundamentals of elementary

electromagnetism, and to develop your skills of analysis using the mathematical tools of algebra and calculus. To help in achieving

these goals you are advised to pursue the following strategies:

(1) Read the text chapter within forty-eight hours prior to the class. You should bring your questions to class or e-mail

the instructor prior to the morning of the class.

(2) During class, listen, observe, take notes, analyze, discuss with peers, answer questions, solve in-class problems and

respond when asked.

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(3) Review your textbook chapter summary within twenty-four hours after class.

(4) Work the assigned problems only after you have read and reviewed the material of the chapter.

(5) Respond via e-mail or during office hours whenever you have a question that has not been answered in class.

(6) Come to class prepared: bring a calculator in order to participate and take full advantage of the lecture hall learning

experience. Do not use laptops, tablets or cell phones for any purpose.

(7) Work extra problems for practice, such as from the text book.

Tentative Lecture Schedule

Session Date Day Chapter: Lecture Topic

1 13 Jan. Mo Ch. 21: Electric charges, fields and forces

2 15 Jan. We Ch. 21: PIC orientation; Coulomb’s law, Electric field

3 17 Jan. Fr Ch. 21: Electric field, electric field lines

4 22 Jan. We Ch. 22 : Electric flux, Gauss’s law

5 24 Jan. Fr Ch. 22: Applications of Gauss’s law

6 27 Jan. Mo Ch. 22: Conductors in electrostatic equilibrium

7 29 Jan. We Ch. 23: Electric potential energy, electric potential

8 31 Jan. Fr Ch. 23: Electric field from potential, Electric potential for continuous charge distributions

9 3 Feb. Mo Ch. 23: Equipotential surface

10 5 Feb. We Ch. 24: Capacitance, capacitor networks

11 7 Feb. Fr Ch. 24: Capacitor networks, energy in capacitors

12 10 Feb. Mo Ch. 24: Capacitors with dielectrics

13 12 Feb. We Ch. 24: Dielectric materials, electric dipoles

14 14 Feb. Fr Ch. 25: Ohm’s law

XM1 14 Feb. Exam 1—Chs. 21-24

15 17 Feb. Mo Ch. 25: Resistors, electrical power in resistors

16 19 Feb. We Ch. 26: Resistor networks

17 21 Feb Fr Ch. 26: Kirchhoff’s rules, RC circuits

18 24 Feb. Mo Ch. 26: RC circuits, household wiring, electrical safety

19 26 Feb. We Ch. 27: Magnets and magnetic fields

20 28 Feb. Fr Ch. 27: Magnetic force on charged particles and wires

21 2 Mar. Mo Ch. 27: Torque on current loops

22 4 Mar. We Ch. 27: Motion of charged particles in magnetic fields, Hall effect

23 6 Mar. Fr Ch. 28: Biot-Savart law, force between current-carrying conductors, Gauss’s law for magnetism

— 9 Mar. Mo No class – Spring Break

— 11 Mar. We No class – Spring Break

— 13 Mar. Fr No class – Spring Break

24 16 Mar. Mo Ch. 28: Ampere’s law

25 18 Mar. We Ch. 29: Faraday’s law of induction

26 20 Mar. Fr Ch. 29: Lenz’s law

XM2 20 Mar. Exam 2—Chs. 25-28

27 23 Mar. Mo Ch. 29: Applications of Faraday’s law

28 25 Mar. We Ch. 30: Inductance, RL circuits, energy in magnetic field

29 27 Mar. Fr Ch. 30: RL circuits

30 30 Mar. Mo Ch. 30: LC and RLC circuits

31 1 Apr. We Ch. 31: Phasors and Reactance

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32 3 Apr. Fr Ch. 31: Power in AC circuits and transformers

33 6 Apr. Mo Ch. 31: Tansformers, electromagnetic radiation, properties of EM waves,

34 8 Apr. We Ch. 32: Maxwell’s equations

35 10 Apr. Fr Ch. 32: Maxwell’s equations and EM spectrum

36 13 Apr. Mo Ch. 32: Poynting vector, energy and momentum in EM waves (skip section 32.5)

37 15 Apr. We Ch. 33: Reflection, Refraction

38 17 Apr. Fr Ch. 33: Dispersion

XM3 17 Apr. Exam 3—Chs. 29-32

39 20 Apr. Mo Ch. 33: Polarization, scattering and Huygens’s Principle

40 22 Apr. We Ch. 34: Image formation by surfaces

41 24 Apr. Fr Ch. 34: Image formation by surfaces, lens (skip sections 34.5-34.8)

42 27 Apr. Mo Ch. 35: Interference and two-source interference

43 29 Apr. We Ch. 35: Interference patterns and Review

FINAL 2 May Sa Final Exam—Comprehensive (8:00 a.m. – 10:00 a.m.)

Drop information is available in the schedule of classes at: http://essc.unt.edu/registrar/schedule/scheduleclass.html

Homework Information

In this course you will be using Expert TA, an online tutorial and homework program.

To get started:

(a) Go to the registration link:

PHYS 2220-002 (Spring 2020, 10AM) Electricity & Magnetism w/ Dr. Perez $32.50

Student Registration Link: http://goeta.link/USQ45TX-556091-29C.

(b) Enter your email address (to be your user name), a password, and requested personal information

(c) Either use your access card from the bookstore, or pay using a credit card.

You can now begin using Expert TA. You will be directed to the main class management screen and your class name will be in the left

column under “Classes”. Assignments will be in the middle column listed under “Assignments” and are shown by due date/time. Note,

tutorial problems are available for practice throughout the semester in the “Student Practice Area”. These are unsaved assignments you

can create yourself without the pressure of grade, and include some extra guidance.

There is a “Getting Started with Expert TA” Tutorial available, so you can get familiar with the interface. Hints and Feedback should

be used often when available, as these are key features of the system.

Student & Tech Support – email main@theexpertta.com any time. You can also call 24x7 toll-free 877-572-0734. Student FAQs are

available by visiting http://theexpertta.com/support/support-faqs.

Ancillary Materials

Canvas will be used to post useful course materials and your grades. You will find an electronic copy of this syllabus, and copies of

Power Point presentations from the lectures.

A Help Room on the second floor of the Physics Building (Physics Instructional Center room) is staffed weekdays by tutors to assist

you with questions regarding homework assignments. TA contact information will be posted on Canvas.

Course Evaluation

The Student Perceptions of Teaching (SPOT) is a requirement for all organized classes at UNT. This short survey will be made

available to you on-line at the end of the semester and will provide you with an opportunity to provide feedback to your course

instructor. SPOT is considered to be an important part of your participation in this class.

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After logging in to the my.unt.edu portal, students can access the SPOT survey site by clicking on the SPOT icon. A list of their

currently enrolled courses will appear. Students complete each course evaluation independently. During the long terms, the SPOT is

open for students to complete two weeks prior to final exams. During the summer terms, the SPOT is open for students to complete

six days preceding their final exam. See SPOT Calendar for specific dates and deadlines.

Note to Members of TAMS

The Texas Academy of Mathematics and Science (TAMS) administration has made the followings statement and has asked us to

include it in our syllabus for members of the Academy:

Class attendance and participation is required. Students must be alert, attentive, energetic, and eager to learn. Students who exhibit

disruptive behavior or show disrespect to a teacher in the classroom are subject to severe disciplinary sanctions. The Academy does

not authorize absences from class. Students must report all absences to the Academic Office within 36 hours of the absence by

completing a form in the Academic Office. A student will be assessed 5 disciplinary points for each class absence, unless the absence

can be justified. Faculty will also be reporting absences to the Academic Office. A student will be assessed 15 disciplinary points

for failure to report an absence that is reported by a faculty member.

If you are a TAMS student and if you are absent for any reason, you are required to file an absence report with the TAMS Academic

Office in Marquis Hall 134.

Expert TA: Student Registration Instructions – University of North Texas (Physics)

Getting Started: See steps below for registering and using Expert TA.

Step 1: Copy and Paste the registration link from below into your browser. UNT Student Registration -

PHYS 2220.002 (Spring 2020, 10AM) Electricity & Magnetism with Dr. Jose Perez $32.50

http://goeta.link/USQ45TX-556091-29C

Step 2: Enter your email. You will see information about your class at the top. You will be asked to

enter your email address. This will serve as your user name. Please remember which email address you

use. Some schools assign more than one email to students. You will only be able to log into Expert TA

with the exact email you register with. Click Continue.

Step 3: Choose a password (or login). After entering your email address, you will be taken to a page to

enter a password. Your password must be at least 7 characters. We recommend including a mixture of

upper or lower case letters with numbers and one special character (ex: #, !, etc…). Click Continue.

Step 4: Your Personal Info. Enter or verify your first name, last name, and student ID. The student ID

would be the one provided by your school. Double check the class information at the top to make sure

you are registering for the proper course section. Scroll down to accept Terms of Service; click Continue.

Registration is Complete and you are almost done!

Step 5: Check-out. You will not be able to do homework until you complete the payment process. - You

will need to click on the check box to confirm that you are purchasing access for the class listed.

- After you have clicked the check box, you will choose your method of payment. If you are using a credit

card to pay now, click “Credit Card”. The option for a free Trial will allow you to delay your payment for

exactly two weeks. If trial is chosen, you will be able to do homework immediately, and asked to make

your actual payment with a credit card after the trial period has ended.

Step 6: Payment with a Credit Card - After clicking “Credit Card” you will be redirected from our site to

Authorize.net - Authorize.net is an industry leader in secure payments and used by tens of thousands of

companies. - Enter your credit card information. Note: Pay careful attention when entering the address

information. This information must match the billing information on the card (this is normally your

house; not your dorm address). If the zip code entered here doesn’t match, the transaction will not

process. This is a security measure that helps to keep people from using your card if it is stolen.

Step 7: Once a credit card payment has been made, or another payment option was used during your

registration, you can begin using Expert TA. You will be directed to the main class management screen

where your class and assignment details can be found. Tutorial problems are available in the “Student

Practice Area” below the Class Menu window. Hints and Feedback are provided throughout the term.

Hints are generalized tips. Feedback is specifically offered based on your most recent incorrect answer.

Student Support & FAQs: http://theexpertta.com/support/student-support

24x7 Student Support - email main@theexpertta.com or call 877-572-0734. Have a great semester!