Eletromagnetism I
Keywords |
Classification |
Keyword |
OFICIAL |
Physics |
Instance: 2020/2021 - 2S

Cycles of Study/Courses
Teaching language
Portuguese
Objectives
- Learn the basics of Electromagnetism
- Derive and present the laws and methods of Electromagnetism under a phenomenological perspective
- Establish links and parallels between Electromagnetism and Mechanics, using concepts such as force and energy
- Emphasize the relevance of the concept of field in the formulation of the laws of Electromagnetism, as an entity responsible for the mediation of physical interactions
- Apply, in the context of Electromagnetism, the concepts and methods of Vector Analysis and Integral Calculus in space
- Present and describe relevant applications of Electromagnetism in Science and Technology
Learning outcomes and competences
The students will have the ability to solve basic physical situations and problems envolving topics of electrostatics and magnetostatics, and the hability to establishe links to simple experimental situations.
Working method
Presencial
Pre-requirements (prior knowledge) and co-requirements (common knowledge)
Concepts and mathematical techniques acquired in Real Analysis I (sequences, Taylor's series, limits and continuity, differential and integral calculus) will be important for the course formalism.
The CU also makes use of the mathematical concepts thta are introduced simultaneously in Analysis II. The simultaneity of the two courses allow the demonstration/illustration of the math techniques (vectorial differential calculus) and allow a better understanding of the physical and mathematical assumptions (vectorial fields, divergence theorem/Gauss law, Stokes theorem/Ampère's Law).
Program
- Electrostatics in vacuum
- electric charge and Coulomb force
- Electric field and Electric field lines.
- Superposition principle.
- Movement of electrically charged particles in electric fields.
- Gauss’ law of the electric field in integral form
- Electric Field and Electric Potential
- Electric energy and field potential of a point charge.
- Electric Potential, equipotential surfaces, and field lines
- conservative field, and electric potential energy.
- multipolar charge distributions
- Electrostatics in Material media
- Conductors
- Dielectric materials and polarization.
- Integral form of Gauss’ law with dielectrics.
- Stationary electric current
- Charge carriers, electric current intensity, current density. The definition of ampère (SI).
- Conduction in metals; electrical conductivity of metals. Ohm’s law. Electric resistance.
- Electric power and Joule’s law.
- Notions of electric circuits (generators, resistive circuit. RC circuit).
- Magnetostatics
- Magnetic force on a moving point charge, and on an electric current element.
- Magnetic field due to electric currents; Biot and Savart’s law. Magnetic field lines.
- Magnetic moment and magnetic dipole.
- Integral form of Ampère’s law.
- Magnetic Induction: Faraday's law
- Magnetic field in material media
Mandatory literature
David Halliday;
Fundamentos de Física
P. A. Tipler; Physics for scientists and engineers, Worth Publishers, 1991
Complementary Bibliography
R. P. Feynman, R. B. Leighton, M. Sands; The Feynmam Lectures on Physics, Addison-Wesley, 1964
R. Blum, D. E. Roller; Physics, 2nd Vol., Holden-Day, 1982
M Alonso and E. J. Finn; Physics, Addison-Wesley, 1996
J. R. Reitz, F. J. Milford, R. W. Christy; Foundations of Electromagnetic Theory, Addison-Wesley, 1993
Comments from the literature
The principal bibliography identifies the main references supporting the programatic topics of the course.
The complimentary bibliography includes alternative titles, following different approaches to the topics. Clearly, the
Lectures on Physics by R.Feynman have to be highlighted due to the physics discussion and the math approach that it uses.
Teaching methods and learning activities
Theoretical classes of exposition and discussion of the topics covered, presenting examples for the understanding of the concepts, laws and calculation techniques.
Theoretical-practical classes for discussion and resolution of exercises and problems.
Discussion group activities will be promoted
Workgroup articularion
- students will be grouped in workgroups of 4
- problems will be lauched to be discussed during a timed period, with the help and functionalities of the Moodle platform
keywords
Physical sciences > Physics > Electromagnetism
Evaluation Type
Distributed evaluation with final exam
Assessment Components
designation |
Weight (%) |
Teste |
25,00 |
Exame |
75,00 |
Total: |
100,00 |
Amount of time allocated to each course unit
designation |
Time (hours) |
Estudo autónomo |
113,00 |
Frequência das aulas |
49,00 |
Total: |
162,00 |
Eligibility for exams
Factors To attain frequency at Electromagnetism I:
- Active presense in Problem solving lectures (TP).
There will be a presence record. Students exceding the limit of absences (1/4 of given TP lectures) will be excluded from "frequencia".
- Participation in the workgroups (>50%)
Class Disimissal requests
- Those students that have obtained "frequência" in the scholar year of 2019/20 may request TP classes dismissal. The request should be made until the end of the 1st lectures week , by e-mail to the Responsible Lecturer.
- If given, the student will keep the classification given in the group work and self-peer components of 2019/20, to be accounted as the workgroup component in 20/21.
- students must attend envisaged tests.
Calculation formula of final grade
The student's evaluation (
NB) is based on the grade of an intermediate test
[12.5%], group assignments [12.5%] and the grade of and a final exam [75%].
NB = (
12.5% 25% Test +
12.5% TGs + 75% Exam) x 20v
TGs, group component:
- for each student, the 3 grouptasks with the best grade (0-100%) are identified, and their average is considered. (TGs)
- the student's self / hetero-assessment score is identified in these 3 works, and their average is calculated (AHm, from -1 to +1).
Final Grade Calculation Formula (NF)
- NF = NB + AHm
- The final grade will always be maximized to the maximum grade of the UC, of 20 values.
- important note: the final grade NF can translate a bonus or depreciation on the final grade, up to a maximum of 1 value, according to the performance of each student in the workgroups.
Examinations or Special Assignments
does not apply
Internship work/project
does not apply
Special assessment (TE, DA, ...)
does not apply
Classification improvement
Improvement of the final grade (at "Recurso" and "Especial" exam periods). The final mark will be calculated as in Época Normal.
the highest of:
- NB = (12.5% Teste + 12.5% TGs + 75% Exame) x 20v
- NB = Exame
Observations
The juri of the curricular unit comprehends:
-
Carla Carmelo Rosa -
Ariel Guerreiro-
João Lima