Electrotechnics I

Scholar Year: 2019/2020 - 1S

Courses

Head Teacher Responsability Natália Maria Madeira da Silva Rosa Marques dos Santos Head

Weekly workload Hours/week T TP P PL L TC EL OT TPL THE S Type of classes 3 2 Lectures Type Teacher Classes Hours Theorethical and Practical classes Totals 1 3,00 Natália Santos   3,00 Prática Laboratorial Totals 1 2,00 Silviano Rafael   2,00 Dulce Costa   2,00 Natália Santos   2,00

Teaching language

Portuguese

Intended learning outcomes (Knowledges, skills and competencies to be developed by the students)

The primary goal of this curricular unit is to provide students with a scientifically founded and unified basis of fundamental knowledge on electromagnetism (an underlying science of Electrical Engineering) which will enable them to grasp advanced topics and specialized applications that will be dealt with later in their courses. Also to provide the students with basic qualification to analyze linear electric circuits (D.C.C.).
The course includes laboratorial work.

Syllabus

CHAP. 1 – ELECTROSTATIC
Unit system. Electric charge. Coulomb’s Law. Electric force. Superposition principle. The electric field. Fields lines. Electric flux. Gauss’s Law. The electrostatic potential and electrostatic energy. Capacity and capacitors. Capacitors association. Electrical energy in a capacitor. Dielectric materials.
CHAP. 2 – CIRCUIT ANALYSIS (DC)
Electric quantities. Electric resistance. Ohm’s law. Joule effect. Active components and passive components. Energy conservation. Resistors association. Wye-Delta transformations. Network topologies. Kirchhoff’s Laws. Voltage and current dividers. Superposition theorem. Mesh and nodal analysis. Thévenin and Norton theorems. Millman’s theorem. Maximum power transfer. Load balance.
CHAP. 3 – MAGNETISM
The magnetic force. Magnetic field. Biot-Savart's law. Ampére's law. Lorentz force. Electromagnetic induction. Faraday's law and Lenz’s law. Electrical generators and motors. Mutual and self inductance. Magnetic energy. Hysteresis. Magnetic circuits.

Demonstration of the syllabus coherence with the UC intended learning outcomes

Theoretical / practical classes:
- Exposition of theoretical subjects, performed with the combination of the expository method and the interpretive method, appealing to the students' participation. Solving application problems in which the active participation of students is promoted.

Laboratory classes:
- The participatory method is followed, although other active methods are also used, depending on the situation. Carrying out 10 laboratory works with the support of specific guides.

Teaching methodologies

Distributed evaluation with final exam.

Demonstration of the teaching methodologies coherence with the curricular unit's intended learning outcomes

The teaching of this course is divided into two kinds of classes: theoretical-practical and practical (laboratorial).
Theoretical-practical classes: contents exposition and problems resolution by the teacher.
Practical-laboratorial classes: the students in group, perform under the teacher supervision, practical work with specific guidelines and final report presentation; the classes have a duration of 2 hours and occur on a weekly basis.

The final classification (NF) results from a combination of the exam classification (NE) and the continuous evaluation classification (NL).
The evaluation of the theoretical-practical component is done by a final exam (NE).
The evaluation of the practical laboratorial component (NL) is performed by practical works and respective reports (10) and two practical tests.