Civil Engineering

1. Electrostatic force. Electrostatic field 1.1 Electric charges. Insulators and conductors. 1.2 Electrical structure of matter. 1.3 Measurement of electrical 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 charge system in the dipole approximation. 2.10 Force on an electric dipole. 3. Gauss's law 3.1 Flow of the electrostatic field. Gauss's law. 3.2 Demonstration of Gauss's law. 3.3 Some applications and consequences of Gauss's 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 Conductors in equilibrium. 4.2 Capacity of an insulated conductor. 4.3 Cable conductor. Electrostatic screen. 4.4 Conductor system. 4.5 Capacitors. 4.6 Connecting the capacitors. 4.7 Energy of the electrostatic field. 4.8 Electrostatic potential energy of a system of charges. 4.9 Force between the plates of a capacitor. 4.10 Method of image charges. 5. Dielectrics 5.1 Dielectric constant. 5.2 Polarization of dielectrics. 5.3 Electrostatic field produced by a polarized dielectric. 5.4 Electrostatic field produced within a polarized dielectric. 5.5 General equations of electrostatics in the presence of dielectrics. 5.6 Dependence of polarization on the electrostatic field. 5.7 Discontinuity of fields on the separation surface between two dielectrics. 5.8 Electrostatic fields inside cavities in a dielectric (outline). 5.9 Electrostatic energy in dielectrics. 5.10 Mechanisms of polarization (outline). 6. Electricity 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 of 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's law for the magnetic field. 7.3 Magnetic force on a moving charge. 7.4 Magnetic force on a conductor carrying current. 7.5 Mechanical moments on plane circuits. 7.6 Hall effect. 7.7 Motion of a charged particle in a magnetic field. 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. 9. Magnetic properties of matter 9.1 Magnetization of matter. 9.2 Permeability and magnetic susceptibility. 9.3 Amperian currents and magnetization. 9.4 General equations of magnetostatics. 9.5 Hysteresis. 9.6 Field discontinuity on the separation surface. 9.7 hints. 9.8 hints. 9.9 hints. 9.10 hints. 10. Electric and magnetic fields varying over time 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. 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 fluctuations. 11.3 AC circuits. 11.4 Power in alternating current circuits. 11.5 Ideal transformer. 12. Electromagnetic waves 12.1 Plane electromagnetic waves. 12.2 Polarization of a plane electromagnetic wave. 12.3 Energy of a plane electromagnetic wave. Poynting vector. 12.4 Momentum (hints). 12.8 Spectrum of electromagnetic waves (outline). Recommended texts Mazzoldi-Nigro-Voci, Fisica - Elettromagnetismo e Onde, terza edizione, Editore Edises, Napoli

Good knowledge of mathematical analysis, geometry, trigonometry, kinematics and mechanics as acquired in the 1st year.

Recommended reading Mazzoldi-Nigro-Voci, Fisica - Elettromagnetismo e Onde, terza edizione, Editore Edises, Napoli

Attendance is discretionary. The student is allowed not to follow the lessons.

The written test consists in the resolution of four exercises in the space of two hours. An evaluation of 18/30 is fully considered sufficient to access the oral test. With a 16/30 assessment it was still allowed to access the oral test, by considering that 16/30 is on the threshold of sufficiency. The oral consists of a discussion about the written test and some theoretical questions. The final evaluation will be based primarily on the judgment of the written test and integrated by information expressed in the oral test.

Mazzoldi-Nigro-Voci, Fisica - Elettromagnetismo e Onde, terza edizione, Editore Edises, Napoli

Classroom lessons of 45 minutes with 15 minutes in which the teacher is available for questions and clarifications.