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 orale obbligatoria; Prova scritta tramite PC con l'utilizzo della piattaforma di ateneo;

The exam is organized in three parts. Part 1 will consists of a test based on questions. A threshold mark is required to get through to the second part. Part 2 will consist of exercises to be solved. A threshold mark is required to get through to the third part. Part 3 will consist of an oral discussion on subjects taken from the syllabus. Each part will contribute at most 10 points to the final mark, which will be obtained as the arithmetic sum of the 3 marks Each of the following situations leads to exam failure: - part 1 mark < 4.5 - part 2 mark < 4.5 - part 3 mark < 6

Modalità di esame: Prova orale obbligatoria; Prova scritta tramite PC con l'utilizzo della piattaforma di ateneo;

The exam is organized in three parts. Part 1 will consists of a test based on questions. A threshold mark is required to get through to the second part. Part 2 will consist of exercises to be solved. A threshold mark is required to get through to the third part. Part 3 will consist of an oral discussion on subjects taken from the syllabus. Each part will contribute at most 10 points to the final mark, which will be obtained as the arithmetic sum of the 3 marks Each of the following situations leads to exam failure: - part 1 mark < 4.5 - part 2 mark < 4.5 - part 3 mark < 6