# Electromagnetic Field II

 Title Ηλεκτρομαγνητικό Πεδίο ΙΙ / Electromagnetic Field II Code 018 Faculty Engineering School Electrical and Computer Engineering Cycle / Level 1st / Undergraduate Teaching Period Spring Coordinator Christos Antonopoulos Common No Status Active Course ID 600000966

### Programme of Study: Electrical and Computer Engineering

Registered students: 705
OrientationAttendance TypeSemesterYearECTS
CORECompulsory Course426

 Academic Year 2022 – 2023 Class Period Spring Faculty Instructors Weekly Hours 4 Class ID 600218965

### Class Schedule

 Building Polytechnic - wing C (ECE & Rural Eng.) Floor Floor 1 Hall Α1 (8) Calendar Wednesday 15:00 to 17:00 Building Polytechnic - wing C (ECE & Rural Eng.) Floor Floor 1 Hall Α1 (8) Calendar Friday 09:00 to 11:00
Course Type 2016-2020
• Background
• Scientific Area
Course Type 2011-2015
Specific Foundation / Core
Mode of Delivery
• Face to face
• Distance learning
Erasmus
The course is also offered to exchange programme students.
Language of Instruction
• Greek (Instruction, Examination)
Learning Outcomes
Upon the successful completion of the course, the students will be able to comprehend and assimilate the concepts of the electromagnetic induction, the behavior of magnetic materials, the electromagnetic (time varying) field and the system of Maxwell equations, the properties and types of uniform plane waves, both for free space propagation and incidence onto plane interface between two homogeneous media. Specifically, the students will have acquired the following skills: - To comprehend and interpret the physical meaning of all the related field quantities and concepts in practical and applied structures concerning the development process of the induced electromotive force and the mutual flux, self and mutual inductance. - To solve magnetic circuits with linear and nonlinear magnetic permeability. - To conduct calculation by means of Maxwell's equations, the boundary conditions and the Poynting theorem, obtaining thus the necessary background to treat problems with time-varying electromagnetic fields. - To solve problems uniform plane waves, to work with phasors for electromagnetic fields with harmonic time variation. To discern and mathematically describe the polarization of a uniform plane wave and handle propagation problems in perfectly (and non) electric conductors. - To solve simple vertical/oblique incidence problems with parallel/perpendicular polarization for various media and calculate the necessary reflection and refraction coefficients.
General Competences
• Apply knowledge in practice
• Retrieve, analyse and synthesise data and information, with the use of necessary technologies
• Work autonomously
• Work in an interdisciplinary team
• Advance free, creative and causative thinking
Course Content (Syllabus)
Electromagnetic induction: Faraday's law. Induced electromotive force. Mutual inductance. Field energy in a current carrying conductors system. Induced currents. Magnetic materials: Magnetisation and magnetic permeability. Ferromagnetic materials. Magnetisation curve. Hysteresis loop. Hysteresis losses. Magnetic circuits. Kirchhoff's laws in magnetic circuits. Non-linear magnetic circuits. Energy and forces in a magnetic field. Electromagnetic field: Time varying electromagnetic field. Maxwell's equations. Constitutive equations. Boundary conditions. Conduction and dielectric displacement current. Lorentz gauge. The general wave equation. Diffusion equation. Harmonic time dependence. Instantaneous value and complex representation. Helmholtz equation. Scalar electric and vector magnetic potential. Poynting vector and power flow. Poynting theorem. Uniform plane wave: Definition and origin. Propagation of a plane wave in lossless and lossy media. Plane wave polarisation. Transmitted power density. Propagation in an arbitrary direction. Phase and group velocity. Reflection and refraction of a plane wave: Definitions. Incident wave. Parallel and perpendicular polarisation. Snell law. Fresnel equations. Brewster and critical angle. Total reflection. Inhomogeneous waves. Reflection and refraction energy coefficients. Normal and oblique incidence on perfect conductors and dielectrics.
Keywords
Electromagnetism, Time varying electromagnetic fields, Theoretical electrotechnics
Educational Material Types
• Notes
• Book
Use of Information and Communication Technologies
Use of ICT
• Use of ICT in Course Teaching
Course Organization
Lectures722.4
Tutorial331.1
Exams752.5
Total1806
Student Assessment
Description
Written exams (duration 180 minutes)
Student Assessment methods
• Written Exam with Problem Solving (Formative, Summative)
Bibliography
Course Bibliography (Eudoxus)
1. Θ. Δ. Τσιμπούκης, Εφαρμοσμένος Ηλεκτρομαγνητισμός, Εκδότης: Θεόδωρος Τσιμπούκης, Θεσσαλονίκη, 2012 (ISBN: 978-960-93-3701-4). 2. J. A. Edminister, Ηλεκτρομαγνητική Θεωρία, ΕΣΠΙ ΕΚΔΟΤΙΚΗ Εταιρεία Περιορισμένης Ευθύνης, Αθήνα, 1998 (ISBN: 960-7610-07-5). 3. Ο. Καλογήρου, Ι. Μ. Κυπριανίδης, και Κ. Γ. Μελίδης, Ασκήσεις και Προβλήματα Ηλεκτρισμού-Μαγνητισμού, Χριστίνα και Βασιλική Κορδαλή Ο.Ε., Θεσσαλονίκη, 2011 (ISBN: 978-960-357-098-1). 4. Ι. Ρουμελιώτης και Ι. Τσαλαμέγκας, Ηλεκτρομαγνητικά Πεδία, Τόμος Α, Εκδόσεις Α. Τζιόλα & Υιοί Α.Ε., Θεσσαλονίκη, 2010 (ISBN: 978-960-418-214-5). 5. Ι. Λ. Βομβορίδης, Ηλεκτρομαγνητικά Πεδία, Μέρος Α, Εκδότης: Καλαμαρά Έλλη, Αθήνα, 2009 (ISBN: 978-960-7888-94-5).