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Electrotechnics

Code:

TGA07

Sigla:

ELECT

Áreas Científicas
Classificação	Área Científica
CNAEF	Electricity and energy

Ocorrência: 2021/2022 - 2S

Ativa?	Yes
Unidade Responsável:	Departamento de Engenharia Eletrotécnica
Curso/CE Responsável:

Ciclos de Estudo/Cursos

Sigla	Nº de Estudantes	Plano de Estudos	Anos Curriculares	Créditos UCN	Créditos ECTS	Horas de Contacto	Horas Totais
TSPTGA	32	Plano de Estudos_2015_16	1	-	6	60	162

Língua de trabalho

Portuguese
Obs.: Português

Objetivos

- Knowledge of physical concepts and materials.
- Interpret the action of electric and magnetic fields.
- Provide methods of analysis of electrical circuits in direct current and in alternating current.

Resultados de aprendizagem e competências

At the end of the UC, the student should be able to:
- Understand and explain the principles that support electrostatic phenomena.
- Identify the electrical quantities and properties of electrical current. Identify electrical components and apply DC circuit analysis techniques.
- Understand and explain the fundamentals of magnetostatics and electromagnetism.
- Analyze AC circuits in steady state.
- Perform laboratory procedures and practices that allow validating and consolidating theoretical knowledge.

Modo de trabalho

Presencial

Programa

CHAPTER I - ELECTROSTATIC
Concepts and Units. Electric charge. Electric force. Coulomb Law. The electric field. Electric potential. The electrostatic potential and electrostatic energy. Capacity and capacitors. Capacitors in series and parallel. Electrical energy in a capacitor.

CHAPTER II - DC CIRCUIT ANALYSIS
Electric quantities (current intensity, voltage, power and energy). Electric resistance. Ohm’s law. Joule effect. Voltage and current sources. Energy conservation. Series and parallel resistor combinations. Kirchhoff Laws (KCL e KVL). Voltage and current dividers. Superposition theorem. Thévenin and Norton theorems.

CHAPTER III - MAGNETISM
The magnetic force between currents. Magnetic field in vacum. Biot-Savart's law. Ampére's law. Lorentz force. Electromagnetic induction. Faraday's law and Lenz’s law. Electrical generators and motors. Magnetic energy. Magnetization. Diamagnetism, paramagnetism and ferromagnetism.  Saturation and Hysteresis. Magnetic circuits.

CHAPTER IV - AC CIRCUIT ANALYSIS
Fundamentals of AC circuits. Sinusoidal time-varying quantities. Average value and RMS value. Circuit analysis: R, RL, RC and RLC series; Concept of Impedance and reactance. Association of impedances. Active, Reactive and Apparent Powers; Power factor.

Bibliografia Obrigatória

Máximo Rosado; Folhas teóricas de apoio às aulas teórico-práticas.
Daniel Foito; Folhas com coleção de problemas de apoio às aulas teórico-práticas

Bibliografia Complementar

Alfredo Barbosa Henriques e Jorge Crispim Romão; Electromagnetismo, IST Press
Joseph A. Edminister; Electromagnetismo, 310 Problemas Resolvidos, Schaum McGraw-Hill
Nelson Martins; Introdução à teoria do Electromagnetismo, Editora Edgard Blucher Lda

Métodos de ensino e atividades de aprendizagem

The teaching of this course is divided into two kinds of classes: theoretical-practical and practical (laboratorial).

Theoretica l- 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 laboratory works with the support of specific guides.

Tipo de avaliação

Distributed evaluation with final exam

Componentes de Avaliação

Designation	Peso (%)
Exame	70,00
Trabalho laboratorial	30,00
Total:	100,00

Componentes de Ocupação

Designation	Tempo (Horas)
Elaboração de relatório/dissertação/tese	30,00
Estudo autónomo	70,00
Frequência das aulas	30,00
Trabalho laboratorial	30,00
Total:	160,00

Obtenção de frequência

The final classification (NF) will be obtained as follows:
- Classification of laboratories (NL), calculated based on the performance of the laboartory work  and respective reports, equal to or greater than 9.5 values.
- Classification of the final exam (NE) equal or to greater than 9,5 values.
- In case of continuous evaluation, the classification (NT) is obtained by the average of the tests with minimum grade is 8 values.

The final classification will be calculated by:
NF = 0.7 * NE + 0.3 * NL
or
NF = 0.7 * ((NT1 + NT2) / 2) + 0.3 * NL

Fórmula de cálculo da classificação final

The final classification will be calculated by:

NF = 0.7 * NE + 0.3 * NL
or
NF = 0.7 * ((NT1 + NT2) / 2) + 0.3 * NL