The Physics II course deals with two of the main subjects of classical physics: thermodynamics and electromagnetic theory.
The specific training objective is to provide the student with the ability to solve elementary but concrete problems. This implies that the student must know how to distinguish between fundamental concepts (electric and magnetic fields and forces, works, Gauss's laws, Ampere's, Faraday's, ...) and more specific issues (motion of charges in electromagnetic fields, cylindrical condensers, .. .) demanding a thorough understanding of fundamental concepts.
The course aims to provide the basic concepts of thermodynamics and electromagnetism, both to deepen the cultural formation of the students, and to provide the technical tools relevant for their future work activity. The students will learn to apply the basic concepts to the solution of simple problems modelling concrete situations that could occur in the maritime workplace and ship management.
The basic mathematical knowledge necessary to follow the lectures is • Calculus, first and second order (quadratic) equations • Basic trigonometry • Functions of a real variable and their derivatives • Basic planar and solid geometry Other mathematical tools will be introduced or recalled during the lectures.
Lessons comprising both theory and exercises.
Thermodynamics
Thermodynamic systems. Temperature: operational definition, thermometric scales. Heat: operational definition, specific heat, latent heat. Heat transmission. Equation of state of perfect gases and real gases. Work in thermodynamic transformations with volume variation. Internal energy. First law of thermodynamics. Specific heats and gas molars. Equipartition Theorem. Second law of thermodynamics. Thermal machines. Refrigeration machines. Entropy and second principle. Carnot's theorem. Absolute thermodynamic temperature.
Electromagnetism
Forces between point charges (Coulomb's law). Electric field. Calculation of the electric field generated by given sources: superposition principle, Gauss’ law. Electric potential, energy of a charge in an electric field. Energy of a system of charges. Analogies with the gravitational field.
Properties of conductors. Capacitors. Energy density of the electric field.
Electric current. Ohm's law. Joule effect. Generators. Circuits with one or more loops. Kirchhoff's laws. RC circuits.
Definition of the magnetic field through the Lorentz force. Forces on a current-carrying conductor. Mechanical moment acting on a current conducting loop. Magnetic moment of a spire. Methods for determining the magnetic field produced by currents: Ampère’s law, Biot-Savart’s law.
Flux of the magnetic field through a closed surface and through an open surface bounded by a closed line. Faraday's law. Self-induction. RL and RLC circuits. Energy density of the magnetic field.
Any "General Physics" book at university level discusses the subject of the course.
For definitness, the main reference for the course is: D. Halliday, R. Resnick, J. Walker, Fundamentals of Physics 10E – Theory
Ricevimento: Students can request an appointment by email: stefano.giusto@ge.infn.it
STEFANO GIUSTO (President)
EDVIGE CELASCO
PAOLO SOLINAS (President Substitute)
https://corsi.unige.it/10948/p/studenti-orario
EXAM: the exam consists in a written and an oral part.
The written exam precedes the oral exam and a passing grade is required to be admitted to the oral exam.
The dates of the oral part of the exam will be agrreed upon with the students.
Students will evaluated on:
- the knowledge of the course contents
- problem solving skills
- ability to handle and comunicate the arguments discussed during the lectures
