Aim of the course (1st semester, 2nd year) is to provide the students with the theoretical concepts concerning basic physics subjects such as (i) electrical properties of materials (ii) electromagnetism nd Maxwell's equation and (iii) waves and wave optics.

- Knowledge of electrostatics in dielectrics media and of magnetostatics. - Knowledge of basic principles of time-dependent electric and magnetic fields. - Knowledge of Maxwell's equations. - Knowledge of wave optics as a consequence of Maxwell's equations. - Knowledge of wave optics laws and of properties of electromagnetic waves. - Ability to apply the acquired knowledge to solve elementary problems.

- Basic physics (mechanics, thermodynamics, basic electrostatics) - Basic mathematics and geometry

ELECTROSTATICS (1 CFU) Static electric field in matter: conductors. Capacitance and capacitors. Energy density of the electric field. Dielectric materials: electrical polarization. Electric current. Conduction. Current intensity and current density. Direct current (DC). Resistance. Ohm’s law. Resistivity and conductivity. Electric power. Joule effect. MAGNETOSTATICS (1,5 CFU) Magnetic field and magnetic induction. Second Maxwell’s equation. Force on a charge moving in a magnetic field: Lorentz’s force. Magnetic force on a current-carrying conductor. Sources of magnetic field. Field of a straight current-carrying conductor: Laplace’s law, and its applications. Magnetic field of a circular current loop. Magnetic dipole. Torque on, and potential energy of, a magnetic dipole in a magnetic field. Forces between parallel currents. Ampère’s law and its applications. Magnetic fields in matter: diamagnetism, paramagnetism and ferromagnetism. TIME-DEPENDENT ELECTRIC AND MAGNETIC FIELDS (2 CFU) Faraday – Henry – Lenz law of electromagnetic induction and its applications. Third Maxwell’s equation. Inductance and self-inductance. Energy in an R-L circuit. Energy density of the magnetic field. Ampère-Maxwell law: fourth Maxwell’s equation. ELECTROMAGNETIC WAVES (1.5 CFU) Wave equation for electric and magnetic field. General characteristics of a wave. Electromagnetic waves. Propagation and attenuation of the electromagnetic waves in conductors and dielectrics. Wave optics. Interference, electromagnetic waves interference and its applications. Diffraction: the basic principles. Fraunhofer’s theory of a double slit interference and of a single slit diffraction. Polarization of light: the basic principles.

Class exercises concern with simple problem solving activities, in strict correlation with the theoretical lectures. In some cases scientific calculators (students' personal property) may be required.

• "Physics for Scientists and Engineers with Modern Physics" FISHBANE, GASIOROWICZ, THORNTON, Ed. Pearson, Prentice Hall Learning material distributed by teacher.

Modalità di esame: Prova scritta (in aula); Prova orale obbligatoria;

Exam: Written test; Compulsory oral exam;

... The exam is organized in two parts: written and oral. The written part consists of two quizzes and two exercises. A threshold mark is required to get through to the oral. The oral part consists in a single question on one of the subjects of the syllabus. The marks are handled as follows: 1) each of the written parts awards a maximum of 10.5 points for a maximum total mark for the written part of 21 2) the oral part awards a maximum of 11 points 3) the final mark is the aritmetic addition of the written and the oral marks 4) each of the following situations leads to exam failure: - mark for at least one of the written parts < 3 - total mark for the written part < 10 - mark for the oral part < 6

Gli studenti e le studentesse con disabilità o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unità Special Needs, al fine di permettere al/la docente la declinazione più idonea in riferimento alla specifica tipologia di esame.