Electromagnetism

Code:

L.EEC013

Acronym:

EMAG

Keywords
Classification	Keyword
OFICIAL	Physics

Instance: 2024/2025 - 1S

Active?	Yes
Web Page:	https://sigarra.up.pt/feup/pt/conteudos_adm.list?pct_pag_id=249640&pct_parametros=pv_ocorrencia_id=540547
Responsible unit:	Department of Chemical and Biological Engineering
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	400	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.

Optionally an experimental activity can be performed, which consists of measuring the magnetic field, using the 3D magnetometer of a smartphone.

keywords

Physical sciences > Physics > Electromagnetism

Evaluation Type

Distributed evaluation without final exam

Assessment Components

Designation	Weight (%)
Teste	100,00
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 enrolling for the first time:
Absence regime according to UP regulations

- For all other students, there is no attendance criterion, i.e. no marking of absences.

Calculation formula of final grade

► CF = min(0.4*T1 + 0.6*T2 + AF, 20)

or

► CF = min(0.4*ER1 + 0.6*ER2 + AF, 20).

where:

CF: final classification

T1(T2): Classification in the 1st(2nd) distributed assessment test.

ER1(ER2): Classification in part 1(2) of the exam in the "recurso" period, which respectively assess the subject matter assessed in T1(T2).

AF: Grade in the facultative assessment

- Test T1 or T2 < 6.0 is not taken into account when calculating the final grade.

- If a student misses one of the tests, the grade assigned to that test when calculating the final grade is zero.

Classification improvement

Classification can be improved by taking the "recurso" exam.

Observations

► The distributed assessment component (DA) will consist of two tests.

► An justified absence from T1 or T2 allows that part of the AD to be taken in the appeal exam. Submission of both parts of the exam will replace the AD grade previously obtained.

► Facultative assessment component:

An optional assignment consisting of studying the magnetic field using a smartphone's 3D magnetometer.

This assignment can be worth up to 2 points.
The grade obtained for this assignment in the previous academic year is valid for the current academic year.
Submitting a new assignment replaces the grade obtained in the previous school year.

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

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