Electromagnetism

Code:

EEC0012

Acronym:

ELEM

Keywords
Classification	Keyword
OFICIAL	Physics

Instance: 2008/2009 - 1S

Active?	Yes
Web Page:	http://moodle.fe.up.pt/0809/course/view.php?id=119
Responsible unit:	Department of Engineering Physics
Course/CS Responsible:	Master in Electrical and Computers Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEEC	404	Syllabus since 2006/2007	2	-	7	77	187
		Syllabus since 2007/2008	2	-	7	77	187
		Plano para alunos que em 2006 estiveram no 3º ano	2	-	7	77	187
		Plano para alunos que em 2006 estiveram no 5º ano	2	-	7	77	187
		Plano para alunos que em 2006 estiveram no 4º ano	2	-	7	77	187

Teaching language

Portuguese

Objectives

The objectives of this course unit are such that students may acquire basic knowledges of Electromagnetism
(an underlying science of Electrical Engineering) and that students may develop their own personal and professional skills and attributes.

At the end of this course unit students are exepcted to have acquired the following skills.

1. Technical Knowledge and Reasoning (CDIO 1.1,1.2)
- To apply correctly the laws which rule the electromagnetic phenomena.
- To present Electromagnetism as an unified model of the different electromagnetic phenomena observed in Nature and used in technology.
- To use the proper technical terminology in order to explain the different electromagnetic concepts and phenomena.
- To describe and explain some of the basic applications of Electromagnetism, such as, capacitors, resistors, coils, electric motors, electric generators, electric transformers, semiconductors and diodes.

2. Personal and Professional Skills and Attributes (CDIO 2.1,2.3,2.4,2.5)
- To enumerate Pólya's Four Steps and through these to acquire skills in order to solve critically and autonomously exercises about the course subjects.
- To develop a critical attitude towards the final result, namely, using dimensional analysis, estimative of the expected order of magnitude, interplay between the different quantities and solution's behaviour in specific limit cases.
- To acquire the discipline to work continuously during the semestre.
- To attain skills concerning written communication.
- To develop an attitude respecting ethical values such as mutual respect, responsibility and honesty.

3. Interpersonal Skills (CDIO 3.1,3.2)
- To acquire skills concerning teamwork.
- To attain skills concerning oral communication.

Program

1) The Cartesian, cylindrical and spherical coordinate system; the transformations between systems; differentials of lengths, surface and volume.

2) Coulomb’s Law: electric charge; electric force; conductors and isolators; superposition principle.

3) The electric field; lines of force; electric flux and Gauss’s Law; applications of Gauss’s Law; the divergence of a vector field and Poisson’s equation.

4) The electrostatic potential: conservative fields; electrostatic potential; examples of electrostatic potential calculations; electric dipoles; the rotational of the electric field; the local form of the electrostatic equations; the potential of a conductor; electrostatic energy.

5) Electrostatic capacity and capacitors: method of computation of the capacity of a capacitor; examples; capacitors in series and parallel; electrostatic energy in a capacitor; dielectrics; boundary conditions for the electrostatic field.

6) The electric current; definition; charge conservation; continuity equation; Ohm’s law and conductivity; the kinetic model for Ohm’s law; wave properties of electrons; the band spectra (conductors; isolators and semi-conductors); the Joule effect; electromotive force; Kirchhoff’s laws.

7) The magnetic field: the magnetic force between currents; Ampère’s law and its applications; the Biot-Savart law and it’s applications; the Lorentz law; the Hall effect.

8) The law of induction: electromagnetic induction; Lenz’s law; generators and motors; the idea transformer; mutual and self inductance; magnetic energy.

9) Magnetic materials: magnetization currents; the H field; diamagnetism; paramagnetism and ferromagnetism; boundary conditions for the magnetostatic field; magnetic circuits.

10) Maxwell’s Equations: a summary of what we have learnt so far; the displacement current; plane electromagnetic waves; energy balance and Poyinting’s vector.

Mandatory literature

Nussenzveig, H. Moysés; Curso de física básica. ISBN: 85-212-0134-6 (vol. 3)

Complementary Bibliography

Cheng, David K.; Field and wave electromagnetics. ISBN: 0-201-12819-5

Teaching methods and learning activities

Theoretical lectures: concepts are introduced and illustrated with examples and applications.

Exercise classes: problem solving by students under the supervision of the teacher.

Moodle site: download theoretical lectures power-point presentations, multimedia resources, exercises sheets, self-evaluation tests, general information on the course and presentation of midterm-exams and exams results.

Office hours: personalized tutorship where doubts on the theory and exercises are clarified.

keywords

Physical sciences > Physics > Electromagnetism

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Description	Type	Time (hours)	Weight (%)	End date
Subject Classes	Participação presencial	65,00
	Exame	3,00
	Total:	-	0,00

Amount of time allocated to each course unit

Description	Type	Time (hours)	End date
	Estudo autónomo	94
	Estudo autónomo	25
	Total:	119,00

Eligibility for exams

To attain admission to final exams students must:
- not exceed 3 absences to exercise classes.
- get a minimum grade of 10 (out of 20) in the distributed evaluation.

Distributed evaluation is performed by 4 midterm exams. Each midterm exam will consist of one exercise (16 points) taken out from an exercise pool (previously announced to students) and of two multiple choice questions (4 points). Distributed evaluation grade is the average over the midterm exams. Midterm exams will last 30 minutes and will be performed at the beginning of the exercises classes.

Students that attained the conditions of admission to final exams in the previous academic year are dismissed from attending classes, being the previous distributed evaluation grade kept. Nonetheless, these students can choose to enroll on one exercise class and to be submitted to the distributed evaluation, being the previous distributed evaluation grade canceled. This option is irreversible.

Please see also Article 4th of "Normas Gerais de Avaliação da FEUP".

Calculation formula of final grade

AD - Distributed Evaluation (0 to 20 points)
EF - Final Exam (0 to 20 points)
CF - Final Mark (0 to 20 points)

If AD >= 10 then the student is admitted to final exams.

In order to pass the course (CF >= 10 points), students must get a minimum of 8 points on the final exam.
Distributed Evaluation has a 40% weight and Final Exam a 60% weight.
If EF >= 8 than CF = 0.4 * AD + 0.6 * EF
else CF= EF

Examinations or Special Assignments

n.a

Special assessment (TE, DA, ...)

- Students that have a special status (working students, etc.) during the present academic year are dismissed from attending the classes and therefore to get a distributed evaluation grade. For these students the final mark will be that of the final exam. Nonetheless, these students can choose to enroll on one class and submit to the distributed evaluation. This option is irreversible.

- Please see also Articles 4th and 6th of "Normas Gerais de Avaliação da FEUP".

Classification improvement

Through the 2nd. round Final Exam.

Final Mark will be evaluate as follows:

CF = max (0.4 * AD + 0.6 * EFN, 0.4 * AD + 0.6 * EFR, EFR)

where CF is the Final Mark (from 0 to 20 points), EFN is the 1st. round Final Exam grade (from 0 to 20 points), AD is the Distributed Evaluation grade (from 0 to 20 points) and EFR is the 2nd. round Final Exam grade (from 0 to 20 points)

Observations

- Weekly time of study, beyond classes, is expected to range from 4 to 6 hours.

- Informations and support material are available on the moodle web page of the course: http://moodle.fe.up.pt/0809/course/view.php?id=119

- Any attempt of FRAUD during the distributed evaluation corresponds to fail immediately the course.