2. Professors
  3. GUIDA MICHELE
  4. Teaching

PHYSICS 2

MICHELE GUIDA PHYSICS 2

0612700105
DEPARTMENT OF INFORMATION AND ELECTRICAL ENGINEERING AND APPLIED MATHEMATICS
EQF6
COMPUTER ENGINEERING
2024/2025



OBBLIGATORIO
YEAR OF COURSE 1
YEAR OF DIDACTIC SYSTEM 2022
SPRING SEMESTER
CFUHOURSACTIVITY
432LESSONS
216EXERCISES


MICHELE GUIDA T Curriculum
Objectives
THE COURSE PROVIDES KNOWLEDGE AND COMPETENCES ON THE BASIC ELEMENTS OF ELECTROSTATICS, MAGNETOSTATICS AND ELECTROMAGNETISM, THAT ARE RELEVANT FOR ENGINEERING STUDIES, ALSO FOR THE PURPOSE OF PROVIDING THE PHYSICAL BASIS FOR THE SUBSEQUENT COURSES.

KNOWLEDGE AND UNDERSTANDING ABOUT:
•VECTOR ANALYSIS
•ELECTROSTATICS
•MAGNETOSTATICS
•MAXWELL’S EQUATIONS FOR ELECTRIC AND MAGNETIC FIELDS GENERATED BY STATIONARY AND NON-STATIONARY SOURCES.

APPLYING KNOWLEDGE AND UNDERSTANDING:
SOLVING SIMPLE PROBLEMS OF ELECTROSTATICS, MAGNETOSTATICS, AND ELECTROMAGNETISM.
Prerequisites
IN ORDER TO SUCCESSFULLY ACHIEVE THE ABOVE GOALS THE STUDENTS ARE REQUIRED TO POSSESS KNOWLEDGE AND COMPETENCE ABOUT BASIC NOTIONS FROM THE PREVIOUS COURSE OF PHYSICS 1, ELEMENTS OF THE DIFFERENTIAL AND INTEGRAL CALCULUS.
AS A STRICT PREREQUISITE, THE STUDENT MUST HAVE PASSED THE COURSE OF PHYSICS 1.
Contents
Didactic unit: 1 Electrostatic Field
(Lecture/Practice/Laboratory hours 6/2/0)
- 1 (2 hours Lecture): recalls about central field of forces (conservative force fields); Coulomb’s Law. Electrostatic Field.
- 2 (2 hours Lecture): Principle of superposition of the effects and linearity. Discrete sources of electrical charges.
-3 (2 hours Lecture): vector analysis and differential operators.
- 4 (2 hours Practice): solution of problems concerning the applications of Coulomb’s Law for electric charge discrete and continuous configurations.
KNOWLEDGE AND UNDERSTANDING: understanding of concepts like electrostatic field, conservativity, linearity and principle of superposition of the effects.
APPLYING KNOWLEDGE AND UNDERSTANDING: capability of solving simple problems with discrete and continuous electric charge configurations.

Didactic unit 2: Gauss’ Theorem. Electrostatic Energy, Electrostatic Potential.
(Lecture/Practice/Laboratory hours 5/3/0)
- 1 (2 hours Lecture): Gauss’ theorem: flux and solenoidality. Electrostatic induction, phenomenology and features.
- 2 (2 hours Lecture): Electrostatic field generated by continuous electric charge configurations; circuitation and irrotationality; electrostatic potential; electrostatic energy; relation field-potential; electric dipole potential.
- 3 (1 hours Lecture + 1 hour Practice): Examples of continuous sources – uniformly charged wire.
- 4 (2 hours Practice): problems on Coulomb’s formulation and Gauss’ theorem for electric charge continuous configurations – infinite plane, uniformly and (non-uniformly) charged sphere; problems about electrostatic potential regarding different configurations (discrete and continuous) of electric charges.
KNOWLEDGE AND UNDERSTANDING:
Acquisition of the knowledge related to the concepts of flux and solenodality of a field, the concept of electrostatic potential and electrostatic potential energy.
APPLYING KNOWLEDGE AND UNDERSTANDING:
Solving simple problems of electric charge continuous distributions applying the Gauss’ theorem, solving simple problems using the electrostatic potential, calculating the electrostatic potential energy in simple cases.

Didactic unit 3: Conductors and capacitors.
(Lecture/Practice/Laboratory hours 5/3/0)
- 1 (2 hours Lecture): local and non-local forms of the first and the third Maxwell’s equations. Conductors in electrostatic equilibrium. Capacity of a conductor.
- 2 (2 hours Lecture): Complete electrostatic induction. Capacitors. Capacity of capacitors. Capacitors in series and parallel.
- 3 (1 hours Lecture + 1 hour Practice): capacitors with homogeneous and isotropic dielectrics; problems on isolated capacitors, in series and parallel, also partially filled with dielectrics.
- 4 (2 hours Practice): summary problems.
KNOWLEDGE AND UNDERSTANDING: acquisition of the knowledge and understanding about the Maxwell’s equations for the electrostatic field, the concept of partial and complete electrostatic induction, the electrostatic characterization of a conductor at equilibrium, the system of conductors and capacitors.
APPLYING KNOWLEDGE AND UNDERSTANDING: solving simple problems of calculation of the effective capacity of configurations of capacitors in series and parallel.

Didactic unit 4: electric current and Ohm’s law.
(Lecture/Practice/Laboratory hours 4/0/0)
- 1 (2 hours Lecture): electric current; continuity equation for the electric charge; generator; microscopic origin of resistance; resistivity.
- 2 (2 hours Lecture): resistance in ohmic conductors; resistors in series and parallel; Ohm’s law; Joule effect; examples of the application of Ohm’s law and calculation of the dissipated power.
KNOWLEDGE AND UNDERSTANDING: acquisition of the knowledge of the phenomenon of electric conduction in metals.
APPLYING KNOWLEDGE AND UNDERSTANDING: solving simple problems regarding the application of Ohm’s law.

Didactic unit 5: Magnetic field, first and second Laplace’s formula, Lorentz’ force.
(Lecture/Practice/Laboratory hours 5/3/0)
- 1 (2 hours Lecture): magnetic field B; sources; permanent magnets and wires carrying currents; first Laplace’s formula.
- 2 (2 hours Lecture): B field generated by stationary current sources with simple geometries. Second Laplace’s formula. Mechanical torque acting on planar circuits.
- 3 (1 hours Lecture + 1 hour Practice): Force of Lorentz. Application of the Biot-Savart’s law to an infinite rectilinear wire carrying a stationary current.
- 4 (2 hours Practice): simple problems about the calculation of the B field generated by different currents. Simple problems about the calculation of the force of Lorentz.
KNOWLEDGE AND UNDERSTANDING: acquisition of the concept of the magnetic field B and the phenomenon of the motion of electric charges in a magnetic field.
APPLYING KNOWLEDGE AND UNDERSTANDING: capability of calculating the magnetic field B generated by stationary currents with elementary geometry.

Didactic unit 6: Ampere’s theorem, Faraday-Neumann-Lenz law.
(Lecture/Practice/Laboratory hours 5/3/0)
- 1 (2 hours Lecture): Ampere’s theorem. Electromagnetic induction.
- 2 (2 hours Lecture): Faraday-Neumann-Lenz law. Auto and mutual inductance.
- 3 (1 hours Lecture + 1 hour Practice): Faraday-Neumann-Lenz law. Auto and mutual inductance. Examples of application of the Faraday-Neumann-Lenz law.
- 4 (2 hours Practice): solution of simple problems about the Faraday-Neumann-Lenz law.
KNOWLEDGE AND UNDERSTANDING: acquisition of the knowledge and understanding of the phenomenon of the electromagnetic induction.
APPLYING KNOWLEDGE AND UNDERSTANDING: capability to calculate the induced electromotive force (emf) in simple cases.

Didactic unit 7: Maxwell’s equations; electromagnetic waves.
(Lecture/Practice/Laboratory hours 2/2/0)
- 1 (2 hours Lecture): Maxwell’s equations in case of not-stationary sources; displacement current.
- 2 (2 hours Practice): summary problems.
KNOWLEDGE AND UNDERSTANDING: acquisition of the knowledge about the electromagnetic waves and their properties.
APPLYING KNOWLEDGE AND UNDERSTANDING: capability to describe the main features of the electromagnetic spectrum.
Teaching Methods
THE COURSE IS ARTICULATED IN 48 HOURS (6 CFU) OF FRONTAL LECTURES (THEORY AND PRACTICE), TAKING PLACE IN THE CLASSROOM ALSO USING MULTIMEDIA FACILITIES. THE PRACTICAL ACTIVITIES ARE AIMED AT THE STUDENTS’ ACQUISITION, WITH “HANDS-ON” MODE, OF THE BASIC LAWS APPREHENDED DURING THE COURSES, THROUGH THEIR APPLICATION TO SIMPLE ALMOST REALISTIC PHYSICAL CASES
IN ORDER TO BE ELIGIBLE FOR THE FINAL EVALUATION PROCEDURE AND THE GAIN OF THE COURSE CREDITS, STUDENTS ARE REQUIRED TO HAVE ATTENDED THE COURSE FOR THE 70% AT LEAST OF THE SCHEDULED HOURS OF THE FRONTAL LECTURES.
Verification of learning
STUDENTS’ PROFIT IS ASSESSED THROUGH A MID-TERM TEST, A WRITTEN FINAL TEST AND AN ORAL INTERVIEW.
THE MIDTERM TEST, WHOSE DURATION IS 1.5 HOURS CONSISTS IN SOLVING EXERCISES/PROBLEMS CONCERNING THE TOPICS RELATING TO THE FIRST HALF OF THE COURSE.
THE FINAL WRITTEN TEST, WHOSE DURATION IS 1.5 HOURS, CONSISTS IN SOLVING EXERCISES/PROBLEMS CONCERNING THE TOPICS RELATING TO THE SECOND HALF OF THE COURSE.
EACH WRITTEN TEST CONSISTS IN SOLVING EXERCISES/PROBLEMS SIMILAR TO THOSE ONES AFFORDED DURING THE PRACTICAL ACITIVITIES PERFORMED IN THE COURSE.
THE STUDENTS NOT ATTENDING OR NOT SUCCEEDING THE MIDTERM TEST HAVE TO ATTEND A WRITTEN TEST, WHOSE DURATION IS 2,5 HOURS, WHICH WILL CONTAIN EXERCISES/PROBLEMS ON THE WHOLE COURSE TOPICS AND WILL TAKE PLACE AT THE SAME DATE AND TIME OF THE FINAL WRITTEN TEST.
THE WRITTEN TESTS ARE EVALUATED IN THIRTIES. THE FINAL SCORE IS OBTAINED TAKING INTO ACCOUNT OF THE OUTCOME OF THE ORAL INTERVIEW AND THE WRITTEN TESTS, WHICH HAVE A PREVALENT WEIGHT ON THE ASSESSMENT OF THE FINAL SCORE.
THE STUDENTS THAT WILL SHOW AN EXCELLENT KNOWLEDGE OF THE COURSE TOPICS, EXCELLENT ABILITY TO EXPOSURE THE ARGUMENTS BESIDES THE ABILITY TO APPLY THE ACQUIRED KNOWLEDGE TO THE SOLUTIONS OF PROBLEMS NEVER AFFORDED PREVIOUSLY DURING THE COURSE WILL BE AWARDED WITH THE SCORE OF MAGNA CUM LAUDE.
Texts
LECTURE NOTES;
QUARTIERI, SIRIGNANO, ELEMENTI DI ELETTROMAGNETISMO, CUA;
MENCUCCINI, SILVESTRINI, FISICA II,LIGUORI PUBLISHER.
HALLIDAY, RESNICK, KRANE, PHYSICS 2.
FLEISCH, A STUDENT'S GUIDE TO MAXWELL'S EQUATIONS.

SUPPLEMENTARY TEACHING MATERIAL WILL BE AVAILABLE ON THE UNIVERSITY E-LEARNING PLATFORM (HTTP://ELEARNING.UNISA.IT) ACCESSIBLE TO STUDENTS USING THEIR OWN UNIVERSITY CREDENTIALS.
More Information
ALL THE LECTURES WILL BE DELIVERED IN ITALIAN
Lessons Timetable

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