Washington DC, 20059
DEPARTMENT OF PHYSICS AND ASTRONOMY  tel.: +12028066245 
Electromagnetic Theory II
PHYS215 (13003): MW: 1:10–2:30 pm, Thirkield Hall, Rm. 103
[Topics]
[Daily Schedule]
[Minimal Requirements]
[Assignments]
[eGear]
Grading recipe (no makeups are offered, except in cases of documented medical or family emergency):
Component  Time  Remark  % of Grade 

Homework  See in daily schedule  Late HW = 0 credit !!!  20% 
Classwork/Quizzes  unannounced  current material; short and straightforward  20% 
Midterm Exams (two) 
See in daily schedule  material covered since the previous exam  20% (each) 
Drop the one worst of the above components (for each student individually).  
Final exam  Last week of semester  comprehensive: complete course content  40% 
— See also the minimal requirements for passing the course —
The goal of this course is to explore the details of electrodynamic interactions, continuing the topics covered in the prequel (Electromagnetic Theory I). To this end, we will discuss the Lorentzcovariant formulation of electrodynamics, the interaction of the electromagnetic field with charged particles in motion. We then focus on specific configurations and arrangements, involving: (1) electromagnetic waves in nonconducting media, cavities and waveguides, (2) the multipole expansion of electromagnetic fields, radiation, scattering and diffraction, and various radiative processes. The course finishes with a brief review of electrodynamic feedback and the classical models of charged particles.
DaytoDay Schedule 

— Students are required to read ahead — see also Howard University Calendars  
01/08  Course logistics and review of the 1st semester material  

01/10  D01  Relativistic charged particle and the EM field 1: §12.1–4  
01/15  Observed Holiday: Martin Luther King, Jr.’ Birthday  
01/17  D02  Relativistic charged particle and the EM field 2: §12.5–8  
01/22  D03  Effective photon mass; Conservation laws; Green’s functions: §12.9–11  
01/24  D04  EM waves in nonconducting media: §7.1–4 [HW1 due]  
01/29  D05  Dispersion characteristics; Magnetohydrodynamics: §7.5–8  
01/31  D06  Dispersion and causality; KramersKronig relations: §7.9–11 [HW2 due]  
02/05  D07  Cavity waveguides; Energy flow and attenutation: §8.1–5  
02/07  1st Midterm Exam (Ch.12 + Ch.7) openbook inclass exam takehome part due Monday, 02/12, 12:00 am (midnight, end of day) 

02/12  D08  Boundary conditions; cavity resonances; Earth and Ionosphere: §8.6–9  
02/14  D09  Multimode propagation; Dielectric waveguides; Normal modes: §8.10–12 [HW3 due]  
02/19  Observed Holiday: Presidents’ Day  
02/21  D10  Radiating systems; Dipole and quadrupole fields: §9.1–4 [HW4 due]  
02/26  D11  Multipole expansion and fields; Angular momentum: §9.5–8  
02/28  D12  Angular distribution of radiation; Multipole moments; Atoms, nuclei and antennae: §9.9–12 [HW5 due]  
03/02–10: Spring Recess  
03/11  D13  Scattering and attenuation; spherical wave expansion of a vector plane wave: §10.1–3  
03/13  2nd Midterm Exam (Ch.8–9) openbook inclass exam takehome part due Monday, 03/18, 12:00 am (midnight, end of day) 

03/18  D14  Scattering by a sphere; Diffraction theory: §10.4–7  
03/20  D15  Diffraction by a circular aperture; Optical theorem: §10.8–11 [HW6 due]  
03/25  D16  Collisions and energy loss: §13.1–3  
03/27  D17  Cherenkov radiation; Scattering of charged particles; Transition radiation: §13.4–7 [HW7 due]  
04/01  D18  Timeadjusted potentials; Radiation emissions & energy loss: §14.1–4  
04/03  D19  Angular and frequency distribution of radiated energy; Undulators and wigglers: §14.5–8 [HW8 due]  
04/08  D20  Collision radiation & Bremsstrahlung; Screening: §15.1–3  
04/10  D21  Virtual quanta; Radiation in βdecay and electron capture: §15.4–7 [HW9 due]  
04/15  D22  Electrodynamic feedback; classical & nonrelativistic models of charged particles §16.1–3  
04/17  D23  Electrodynamic feedback; classical & relativistic models of charged particles §16.5–8 Final Exam handed out; due Friday, 04/26, 12:00 am (midnight, end of day) 

04/22  Review & Qualifier Questions  
04/24  Review & Qualifier Questions  
04/26  Final Exam due by 12:00 am (midnight, end of day)  
All indicated times and deadlines cite “Eastern time,” standard or daylightsaving — as Howard University officially adopts. 
To pass the course with a grade B or better, a graduate Student must by the time of the final exam be able to demonstrate the ability to determine:
A graduate student who cannot demonstrate the above listed skills by the time of the final exam automatically forfeits a grade of B or better — regardless of the total number of points acquired in homework, quizzes and exams.
All written assignments (HW & takehome tests) are due by 12:00 am (midnight), end of the day indicated and should be sent by email as single (bundled) PDF files; to this end, using a cameratoPDFscanner app on a smartphone or tablet is highly recommended. Late homework will not be accepted, except in cases of documented emergency.
Collaboration — but not blind copying — on the homework assignments is strongly encouraged; students should use this to learn from each other. There is no substitute for the diverse previous experiences and wealth of knowledge brought together by a cohort of students. All exams and quizzes are open text and open classnotes (including notebooks and class handouts), but no collaboration is allowed; by signing and submitting the exams and quizzes, the student vouches to have abided by this policy. Violation of this policy is covered under University regulations on academic dishonesty and cheating.
First and foremost: your assignments are your communication to the instructor of the level of expertise to which you have mastered the subject matter covered in the course. So, while a neat presentation of home, quiz and examwork is not required for full credit, it certainly makes it easier to assess the quality of the work and give the proper credit due. In all cases, include a simple sketch if it might help conveying the approach or the calculations. Where necessary, include all units and symbols such as the measure of an integral, arrow on a vector, vertical bars for the absolute value of a quantity, for the magnitude of a vector or for the determinant of a matrix, etc.
Each assignment is to be submitted (and is datestamped) by email (→ thubsch@mac.com), as a single PDF file. Handwritten and other “hardcopy” answersheets should be scanned and bundled into a single PDF file — there are many smartphone and tablet apps that do this automagically; some printers also include a flatbed scanner, if you prefer.
Class Attendance Restricted to Registered Students: Only students whose names appear on the official course roster are permitted to attend class meetings. Students who are not registered are not permitted to attend or participate in course activities, do not have access to Blackboard, cannot submit course assignments, and will not receive a grade for this course. It is the students’ responsibility to ensure that they are properly registered by the published registration deadline. Requests to add courses after the deadline will not be considered.
Howard University is committed to creating an accessible, inclusive, and safe learning environment for all students and providing equal access to students with documented disabilities. Students seeking reasonable accommodation must first register with the Office of Student Services (OSS). There you can engage in a confidential conversation about the process for requesting reasonable accommodations in the classroom and clinical settings, which the Office of Student Services (OSS) determines. Accommodations must be requested each semester. Accommodations are not provided retroactively. If you want to request accommodations, please contact OSS via email at oss.disabilityservices@howard.edu or visit https://howard.edu/disabilityservices
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©2024, Tristan Hübsch