Teachings
70/0005M  PHYSICS 2
Academic Year 2021/2022
Free text for the University
 Professor

RICCARDO CORPINO (Tit.)
 Period

First Semester
 Teaching style

Convenzionale
 Lingua Insegnamento

ITALIANO
Informazioni aggiuntive
Course  Curriculum  CFU  Length(h) 

[70/72] CIVIL ENGINEERING  [72/00  Ord. 2013] PERCORSO COMUNE  7  70 
[70/73] ENVIRONMENTAL AND LAND ENGINEERING  [73/00  Ord. 2020] PERCORSO COMUNE  7  70 
[70/77] CHEMICAL ENGINEERING  [77/00  Ord. 2020] PERCORSO COMUNE  7  70 
Objectives
Expected learning outcomes.
1) (Knowledge and understanding). Knowledge of the basic principles of Electromagnetism and understanding of the related physical problems, with particular emphasis to those typical of Engineering.
2) (Applying knowledge and understanding). Capability of applying the acquired knowledge for solving quantitative elementary problems of Electromagnetism.
3) (Making judgements). Capability of selecting relevant information of an electromagnetism problem and of introducing suitable simplifications.
4) (Communication skills). Capability of describing topics of Electromagnetism through the use of a correct terminology.
5) (Learning skills). Physical/mathematical conceptual skills necessary to deal with more advanced courses of Applied Physics and Engineering with a good degree of autonomy
Prerequisites
Necessary knowledge of Physics1 and Mathematical analysis 1.
It is useful the ability in problem solving
All the notions necessary will be recalled in class
Contents
1 Electrostatics (11h+6h)
Electric charges. Conductors and insulators. Coulomb’s law. Electric field. Electric field lines. Electric field due to a single charge and to a charge distribution. Motion of a charged particle in a uniform electric field. Electric flux. Gauss’s law. Application of Gauss’s Law to various charge distributions. Work and electric potential. Equipotential surfaces. Electric potential due to a point charge and to a charge distribution. Relation between the electric field and the electric potential. Electric field and the electric potential in a conductor.
2 Capacitors (3h+2h)
Capacitance. Capacitors. Planar, spherical, and cylindrical capacitors. Capacitors in series and in parallel. Energy stored in an electric field. Energy density of the electric field. Capacitors with dielectrics and dielectric constant. Energy stored in an electric field in presence of a dielectric. Electric dipoles in dielectrics. Gauss’s Law in dielectrics.
3 Circuits (8h+3h)
Electrical current and current density. Electrical resistance and resistivity. Ohm’s Law. Semiconductors and superconductors. Power and Joule’s effect. Electromotive force. Kirchhoff’s laws. Resistances in series and in parallel. RC circuits.
4 Magnetic field in vacuum (8h+3h)
Magnetic force and magnetic field. Magnetic force acting on a currentcarrying wire. Torque acting on a current loop. Magnetic dipole moment. BiotSavart Law. Ampère’s Law. Magnetic field due to an infinite wire, an infinite solenoid and a toroid. Forces between two parallel currents and SI unit of current.
5 Electromagnetic induction (11h+4h)
Electromagnetic induction and Faraday’s law. Lenz’s law. Motional electromotive force. Generators. Induced electromotive forces and electric field. Selfinduction. Selfinduction in a solenoid and in a toroid. RL circuits. Energy stored in a magnetic field. Energy density of the magnetic field.
6MAXWELL’S EQUATIONS (5h)
Teaching Methods
Lecture: 52 hours; Tutorial and exercises: 18 hours
Lectures will be prevalently held in classrooms, also integrated with
online teaching resources, by using specific online platforms
managed by the University of Cagliari
Teaching Methods
70 hours)
Lectures will be prevalently held in classrooms, also integrated with
online teaching resources, by using specific online platforms
managed by the University of Cagliari
Verification of learning
Intermediate exam during (within the allowed week) with a duration of three hours. This examination consists of one written test with open questions and corresponds to approximately 1/2 of the contents.
Written exam: test with open questions and corresponds to approximately 1/2 of the contents.
Verification of learning
Intermediate test during the lesson period (within the scheduled week). This test will consist of a PowerPoint presentation (PPT) (or similar software) on a topic of the curriculum explored up to the moment of the intermediate test. In next round the students, who have had a positive outcome in the midterm test, will complete the exam by presenting a second PPT on the remaining curriculum. For the student, who have not taken the intermediate exam, the exam will be divided into two parts with the two PPT presentations.Students will be able to give the two presentations in two distinct rounds. The first is preparatory to the second. The topics covered by the presentations can be on the curriculum explored or an indepth study chosen by the candidate.
Each part is evaluated in 30/30. In evaluating the exam, the final grade would be made of: 1) Knowledge of the topic; 2) Critical reasoning skills; 3) Use of an adequate technicalscientific language; 4) Ability to create relationships between topics. It is necessary to have a vote of 18 on both PPT. To pass the exam, thus obtaining a grade of not less than 18/30, the student must demonstrate that they have acquired sufficient knowledge of the topics related to electrostatics and electrodynamics, a basic knowledge of the topics of magnetism, and to be able to discuss the connection between electric and magnetic fields. To achieve a score of 30/30 cum laude, the student must instead demonstrate that he has acquired an excellent knowledge of all the topics covered during the course.
During the presentations the students can use the textbook.
If the result of the two tests is positive (minimum 18 in both tests) the mark will be recorded unless the student requests to retake the exam
Texts
Serway Jewett
FISICA PER SCIENZE ED INGEGNERIA
More Information
Common course with Physics 2 for Ingegneria Civile; see the related information
More Information
Common course with Physics 2 for INGEGNERIA PER L'AMBIENTE E IL TERRITORIO; see the related information
More Information
Common course with Physics 2 for Ingegneria Civile and Ingegneria Chimica