Civil Engineering

1. Electrostatic force. electrostatic field 1.1 Electric charges. Insulators and conductors. 1.2 Electrical structure of matter. 1.3 Measurement of electric charges. Coulomb's law. 1.4 Electrostatic field. 1.5 Electrostatic field produced by a continuous distribution of charges. 1.6 Lines of force of the electrostatic field. 1.7 Motion of a charge in an electrostatic field. 2. Electrical work. electrostatic potential 2.1 Work of the electric force. Voltage, potential. 2.2 Calculation of the electrostatic potential. 2.3 Electrostatic potential energy. 2.4 Motion of a charge in the electrostatic field. Conservation of energy. 2.5 Electrostatic field as a gradient of the electrostatic potential. 2.6 Equipotential surface. 2.7 Rotor of a vector field. Stokes theorem. 2.8 Electric dipole. 2.9 Potential of a system of charges in the dipole approximation. 2.10 Force on an electric dipole. 3. Gauss' law 3.1 Electrostatic field flux. Gauss's law. 3.2 Proof of Gauss' law. 3.3 Some applications and consequences of Gauss' law. 3.4 Electrostatic field around a surface layer of charge. 3.5 The divergence of the electrostatic field. 3.6 Maxwell's equations for electrostatics. 4. Conductors. Electrostatic energy 4.1 Balanced conductors. 4.2 Capacity of an insulated conductor. 4.3 Hollow conductor. Electrostatic screen. 4.4 Conductor system. 4.5 Capacitors. 4.6 Connection of capacitors. 4.7 Energy of the electrostatic field. 4.8 Electrostatic potential energy of a system of charges. 4.9 Force between plates of a capacitor. 4.10 Method of image charges (outlines). 6. Electric current 6.1 Electrical conduction. 6.2 Electric current. 6.3 Stationary electric current. 6.4 Classical model of electrical conduction. 6.5 Ohm's law of electrical conduction. 6.6 Resistors in series and in parallel. 6.7 Electromotive force. 6.9 Charging and discharging a capacitor through a resistor. 6.10 Kirchhoff's laws for electrical networks. 7. Magnetic field. Magnetic force 7.1 Magnetic interaction. 7.2 Gauss' law for the magnetic field. 7.3 Magnetic force on a moving charge. 7.4 Magnetic force on a current-carrying conductor. 7.5 Mechanical moments on flat circuits. 7.6 Hall effect (outline). 7.7 Motion of a charged particle in a magnetic field (outline). 8. Sources of the magnetic field. Ampere's law. 8.1 Magnetic field produced by a current. 8.2 Calculations of magnetic fields produced by particular circuits. 8.3 Electrodynamic actions between current-carrying wires 8.4 Ampère's law. 8.5 Properties of the magnetostatic field in vacuum. 10. Time-varying electric and magnetic fields 10.1 Introduction. 10.2 Faraday's law of electromagnetic induction. 10.3 Origin of the induced electric field and of the induced electromotive force. 10.4 Applications of Faraday's law. 10.5 Felici's law (notes). 10.6 Self-induction. 10.7 Magnetic energy. 10.8 Mutual induction. 10.9 Energy in coupled circuits. 10.10 Displacement currents. 10.11 Maxwell's equations. 11. Electric oscillations. Alternating currents 11.1 Damped oscillations. 11.2 Permanent oscillations. 11.3 Alternating current circuits. 11.4 Power in alternating current circuits. 11.5 Ideal transformer. 12. Electromagnetic waves (outline) 12.1 Plane electromagnetic waves (outline). 12.2 Polarization of a plane electromagnetic wave (outline). 12.3 Energy of a plane electromagnetic wave (outline). Poynting vector (outline). 12.8 Spectrum of electromagnetic waves (outline). Recommended texts Mazzoldi-Nigro-Voices, Physics - Electromagnetics and Waves, third edition, Publisher Edises, Naples (the program follows the numbering of the text). To get carried away with solving basic exercises, in addition to the exercises proposed in the main manual, we recommend: S. Mirabella-S. Plumari, Problems and Solutions of Physics II, Città Studi Edizioni.

Good knowledge of mathematical analysis, geometry, trigonometry, kinematics and mechanics.

Recommended reading Mazzoldi-Nigro-Voci, Fisica - Elettromagnetismo e Onde, terza edizione, Editore Edises, Napoli . To gain confidence in solving basic exercises, in addition to the exercises proposed in the main manual, we recommend: S.Mirabella-S.Plumari, Problemi e Soluzioni di Fisica II, Città Studi Edizioni.

Classroom lessons of 45 minutes with 15 minutes in which the teacher is available for questions and clarifications. (during the containment phase of the Corona Virus, lessons via the Google Classroom platform, as indicated on the teacher's notice board https://corsidilaurea.uniroma1.it/it/users/alessandrobelardiniuniroma1it)

The student is free not to follow the lessons.

The written assignment consists in the resolution of two exercises in the space of one hour. It is possible to consult the theory textbook made available by the professor on the chair. However, it is not permitted to consult one's own books and notes or electronic instruments. The calculator is generally not necessary, if necessary it will be provided by the teacher. An evaluation of 18/30 is considered fully sufficient to access the oral exam. With an evaluation of 16/30 you are still admitted to the oral exam, considering that you are on the verge of passing. The oral consists of a discussion on the written test and some theory questions. The final evaluation will be mainly based on the judgment of the written test integrated with the information expressed by the oral exam.

Mazzoldi-Nigro-Voci, Elementi di Fisica - Elettromagnetismo - Onde, seconda edizione, Editore Edises, Napoli

Lessons in the classroom