Electromagnetism

Code:

L.EEC013

Acronym:

EMAG

Keywords
Classification	Keyword
OFICIAL	Physics

Instance: 2022/2023 - 1S

Active?	Yes
Web Page:	https://sigarra.up.pt/feup/pt/conteudos_adm.list?pct_pag_id=249640&pct_parametros=pv_ocorrencia_id=499474
Responsible unit:	Department of Engineering Physics
Course/CS Responsible:	Bachelor in Electrical and Computer Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
L.EEC	398	Syllabus	2	-	6	58,5	162

Teaching language

Portuguese

Objectives

At the end of this curricular unit course, student should be able to:

- correctly use the laws governing electromagnetic phenomena;
- describe electromagnetism as a unifying theory of various electromagnetic phenomena observed in nature and used in
technologies;
- use appropriate technical vocabulary;
- describe practical applications of Electromagnetism;
- have a critical attitude of the obtained final results.
Specifically, students should:
-Have insight of basic electromagnetic phenomena, including how charge create electric fields, and how currents are at the
origin of magnetic fields;
-Identify key quantities in Electrical Engineering, such as Capacity and Inductance with the corresponding physical meaning;
-Understand fundamental properties of electrodynamics, namely the physical nature Faraday’s law, the displacement current,
and the interdependence between electric and magnetic fields;
-Be familiar with magnetic properties of materials, and be able to undertake a quantitative analysis of electro excited magnetic
circuits.

Learning outcomes and competences

At the end of this unit course, student should be able to:

- correctly use the laws governing electromagnetic phenomena;

- describe electromagnetism as a unifying theory of various electromagnetic phenomena observed in nature and used in technologies;

- use appropriate technical vocabulary;

- describe practical applications of Electromagnetism;

- have a critical attitude of the obtained final results.

Working method

Presencial

Pre-requirements (prior knowledge) and co-requirements (common knowledge)

It is assumed that students have:

i) knowledge of Newtonian mechanics, that is, they know the three laws of Newton and are able to describe the forces and movements they produce

ii) some basic knowledge of the atomic structure of matter;

iii) knowledge of electrical circuits, i.e., to know the laws of Ohm and Kirchhoff and know how to deal with resistors, capacitors and inductors.

iv) some knowledge about vectors (for example, add vectors, write the position-vector of a particle in three-dimensional space and compute the inner and outer product of two vectors) and elementary calculus (i.e., to derive and integrate simple functions).

Program

1) Coulomb's Law : discrete and continuous distributions of electric charge.
2 ) Electric Field. Gauss's Law.
3) Electrostatic Potential: The equations of Laplace and Poisson. Electrostatic energy.
4) Electrostatic of Conducting Materials : conductors in electrostatic equilibrium.
5) Capacity and Electric Capacitors.
6) Electrostatic of Dielectric Materials
7) Electric Current: current density vector. Ohm's law . Continuity equation.
8) Magnetic field : magnetic force between stationary electric currents ,magnetic field B , Biot - Savart law , Ampere's law.
Lorentz equation. Self-induction and mutual induction coefficients.
9) Magnetic Materials: the magnetic dipole; types of magnetism. Magnetic circuits.
10) Electromagnetic Induction : Faraday's law of induction , Lenz's law. Magnetic energy.
11) The displacement current , the induced magnetic field; Maxwell's equations in vacuum and in the presence of matter.

Mandatory literature

Umran S. Inan, Aziz S. Inan; Engineering electromagnetics. ISBN: 0-8053-4423-3
David J. Griffiths, Reed College; Introduction to electrodynamics. ISBN: 0-13-805326-X

Complementary Bibliography

H. Moysés Nussenzveig; Curso de física básica. ISBN: 85-212-0134-6 (vol. 3)
Daniel Fleisch; A student.s guide to Maxwell.s Equations. ISBN: 978-0-521-70147-1
Daniel Fleisch; A Student's Guide to Vectors and Tensors, Cambridge University Press, 2011. ISBN: 0521171903
Edward M. Purcell,David J. Morin; Electricity and Magnetism, Cambridge University Press, 2013. ISBN: 1107014026, 9781107014022
Richard Fitzpatrick; Classical Electromagnetism, 1997
Jorge Loureiro; Eletromagnetismo e Ótica, IST PRESS, 2019. ISBN: 978-989-8481-66-5
Jorge Loureiro; Exercícios de Eletromagnetismo e Ótica, IST Press, 2018. ISBN: 978-989-8481-67-2
Alfredo Barbosa Henriques, Jorge Crispim Romão; Electromagnetismo. ISBN: 972-8469-45-4
Cheng David K.; Field and wave electromagnetics. ISBN: 0-201-12819-5

Teaching methods and learning activities

Theoretical lectures are dedicated to the presentation of the main subjects, including a significant number of practical examples.

Experimental demonstrations are conducted whenever possible. Practical lectures include exercise solving under the supervision
of the teacher and eventually two or three lab works.

Theoretical lectures (TEORICAS): complete discussion of the subjects and exercise solving of main basis cases.

Exercise classes (TEÓRICO-PRÁTICAS): exercise solving under the supervision of the teacher of several exercises.

 

keywords

Physical sciences > Physics > Electromagnetism

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Designation	Weight (%)
Teste	40,00
Exame	60,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Estudo autónomo	116,50
Frequência das aulas	45,50
Total:	162,00

Eligibility for exams

► Attendance:

-For students in 1st registration:
Number of absences defined by UP regulation.

- For students with two or more registrations:
For these students there is no criterion of attendance, ie, there is no marking of faults.

► Distributed Assessment (AD) will consist of 1 test.

-The test will be quoted in the scale from 0 to 20 values, and this is the classification to be attributed to each student.

►Students enrolling for the 1st time:

To attain admission to final exams students must:

► For other students:

Students that attained the conditions of admission to final exams in the previous academic year:

Students may keep the mark obtained last year in the distributed evaluation (and there is no need to enrol in a TP class). In that case, they cannot follow the distributed evaluation during the semester. If a given student decides to follow the distributed evaluation, the previous mark is not considered.

Students that did not attained the conditions of admission to final exams in the previous academic year:

EITHER take the distributed evaluation like 1st time students

OR attend only "exame de recurso", performing this exam for 20 marks.

► Regardless of the classification obtained in the distributed evaluation, all students may attend the final exam.

 EXPLANATION OF DISTRIBUTED EVALUATION:

► Distributed evaluation will consist of one test.

► The duration of the test is 1h30 minutes  

Optional evaluation:

Measurement of B field components using a smartphone.

Up to one value if the final classifcatiion in the exam is higher than (8,0 out ot 20).

Calculation formula of final grade

If the mark obtained in the exam (EX) is lower than 8.0 (minimum to be approved in the curricular unit), the final classification (CF) will be that mark. Otherwise, the final classification is given by

CF = Max (0,4*AD + 0,6*EX ; EX)+AF

where

CF - Final Mark (0 to 20 points)
EX - Final Exam (0 to 20 points)
AD - Classification of the test of Distributed Evaluation (0 to 20 points)

AF-Optional evaluation - measurement of B field using a smartphone

Examinations or Special Assignments

n.a.

Internship work/project

n.a.

Special assessment (TE, DA, ...)

-Students who during the current school year are under special status (TE) are exempted from attendance. As mentioned above, they may obtain approval by AD or final examination.

Classification improvement

Final exam quoted for 20 values (appeal season).

Through the 2nd round Final Exam.

Final Mark will be evaluate as follows:

CF = max (CFN, 0.4 * AD + 0.6 * R, R) where

CFN is the 1st. round final grade (from 0 to 20 points), AD is the Distributed Evaluation grade (from 0 to 20 points) and R is the 2nd. round Final Exam ("Exame de Época de Recurso") grade (from 0 to 20 points).

Observations

-Students should dedicate to the study of the curricular unit about 5,5 hours per week, in addition to the usual frequency of classes.

-Any attempted FRAUD during the distributed evaluation process leads to loss of frequency and not admission to examination.

-Weekly attendance to students is accomplished through a direct negociation between the student and the professor.