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## ELECTRIC AND MAGNETIC FIELDS

CODE 60335 2022/2023 6 cfu during the 2nd year of 8716 INGEGNERIA ELETTRICA (L-9) - GENOVA ING-IND/31 Italian GENOVA 2° Semester Prerequisites You can take the exam for this unit if you passed the following exam(s): Electrical Engineering 8716 (coorte 2021/2022) MATHEMATICAL ANALYSIS I 56594 GEOMETRY 56716 FUNDAMENTAL OF PHYSICS 72360 This unit is a module of: AULAWEB

## OVERVIEW

Module of static and low frequency Electric and Magnetic Fields

## AIMS AND CONTENT

### LEARNING OUTCOMES

The module is designed to provide to Students the knowledge and operational skills indispensable to properly describe, analyze and solve problems of static and quasi-stationary Electric and Magnetic Fields, introducing the models based on their integral formulation, with particular emphasis on Magnetic Circuits and the practical applications of electromagnetic induction.

### AIMS AND LEARNING OUTCOMES

At the end of the module, the Student shall have correctly understood the basic concepts of low frequency Electromagnetic Theory, shall be able to correctly classify the different types of encountered problems, and to correctly formulate the solution, arriving, when possible, to determine their analytical solution.

### TEACHING METHODS

Theory lectures and related exercises in the second semester (6 credits).

### SYLLABUS/CONTENT

• The equations of Electromagnetic Field in absence of relative motion among material media: Maxwell’s Equations in integral form. Constitutive equations of materials. Energy stored in the Electromagnetic Field.
• Static Electric Field: its evaluation methods. Energy and Forces. Principle of Virtual Work. Definition of resistance and capacity.
• Static Magnetic Field: its evaluation methods. Energy and Forces. Principle of Virtual Work.
• Magnetic materials: diamagnetic, paramagnetic and ferromagnetic.
• Magnetic Circuits. Self and mutual inductances. Definition of reluctance. Magnetic circuits built using linear, nonlinear materials, and permanent magnets. Magnetic networks.
• Quasi-stationary Electromagnetic Fields: Stray Currents. Magnetic Circuits in Steady State Alternate Current operations.
• Electromagnetic Induction: Lorentz’s Force. Faraday’s Law of Electromagnetic induction. Induced Voltage.
• Brief description to transient phenomena and high frequency Electromagnetic Fields.

### RECOMMENDED READING/BIBLIOGRAPHY

- M. Nervi: “Dispense del corso”

Bibliography (for OPTIONAL study deepening on specific subjects):

• F. Barozzi, F. Gasparini: “Fondamenti di elettrotecnica: elettromagnetismo”, UTET, 1989
• S. Bobbio, E. Gatti: “Elementi di elettromagnetismo”, Boringheri, 1984
• M. A. Plonus: “Applied Electromagnetics”, McGraw-Hill international Editions, 1988

## TEACHERS AND EXAM BOARD

### Exam Board

MARIO NERVI (President)

PAOLA GIRDINIO

DANIELE MESTRINER

PAOLO MOLFINO

GIORGIO MOLINARI

MANSUETO ROSSI

MASSIMO BRIGNONE (President Substitute)

## LESSONS

### LESSONS START

https://corsi.unige.it/8716/p/studenti-orario

### Class schedule

All class schedules are posted on the EasyAcademy portal.

## EXAMS

### EXAM DESCRIPTION

The examination of Electric and Magnetic Fields is based on an oral discussion, lasting about 30 minutes, normally about the solution of practical problems, and optional questions about the related theory.

The final marking of Elettrotecnica is the average of the marks (rounded to the higher integer figure) of its modules (Electric Circuit and Electric and Magnetic Fields). The partial examinations must be passed in the following order: at first Electric Circuit, and afterwards Electric and Magnetic Fields.

### ASSESSMENT METHODS

In oral exams, the correct understanding of some theoretical subjects regarding all the content of the course is assessed, as well as the ability to correctly setup the solution of a field problem.

### Exam schedule

Date Time Location Type Notes
16/01/2023 09:30 GENOVA Orale Gli appelli di gennaio e febbraio 2023 sono riservati agli Studenti che hanno seguito il corso in A.A. precedenti il 2022/2023
13/02/2023 09:30 GENOVA Orale Gli appelli di gennaio e febbraio 2023 sono riservati agli Studenti che hanno seguito il corso in A.A. precedenti il 2022/2023
12/06/2023 09:30 GENOVA Orale Gli appelli di gennaio e febbraio 2023 sono riservati agli Studenti che hanno seguito il corso in A.A. precedenti il 2022/2023
03/07/2023 09:30 GENOVA Orale Gli appelli di gennaio e febbraio 2023 sono riservati agli Studenti che hanno seguito il corso in A.A. precedenti il 2022/2023
17/07/2023 09:30 GENOVA Orale Gli appelli di gennaio e febbraio 2023 sono riservati agli Studenti che hanno seguito il corso in A.A. precedenti il 2022/2023
11/09/2023 09:30 GENOVA Orale Gli appelli di gennaio e febbraio 2023 sono riservati agli Studenti che hanno seguito il corso in A.A. precedenti il 2022/2023