# PHYSICS II

_
iten
Codice
101124
2019/2020
CFU
12 cfu al 1° anno di 10948 MARITIME SCIENCE AND TECHNOLOGY (L-28) GENOVA
SETTORE SCIENTIFICO DISCIPLINARE
FIS/01
SEDE
GENOVA (MARITIME SCIENCE AND TECHNOLOGY)
periodo
2° Semestre
materiale didattico

## OBIETTIVI E CONTENUTI

OBIETTIVI FORMATIVI

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.

Modalità didattiche

Lessons, seminars, discussion of case studies

PROGRAMMA/CONTENUTO

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. Absolute thermodynamic temperature.

Electromagnetism

Forces between point charges (Coulomb's law). Electric field. Calculation of the electric field through the 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.

Conductor properties. Capacitors. Energy density of the electric field.

Electric current. Ohm's law. Joule effect. Generators. Circuits with one or more meshes. Kirchhoff's laws. RC circuits.

Definition of magnetic field (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.

Flow of the magnetic field through a closed surface concatenated with a closed line. Faraday's law. Self-induction. RL and RLC circuits. Energy density of the magnetic field.

TESTI/BIBLIOGRAFIA

A set of book will be proposed (the list will appear on aulaweb as soon as the classes start)

## DOCENTI E COMMISSIONI

Ricevimento: Su appuntamento via e-mail a paolo.solinas@spin.cnr.it

Commissione d'esame

PAOLO SOLINAS (Presidente)

LUCA GAGLIARDI

NICOLA MAGGIORE (Supplente)

## LEZIONI

Modalità didattiche

Lessons, seminars, discussion of case studies

INIZIO LEZIONI

Lectures will start in accordance with the academic calendar.

ORARI

L'orario di tutti gli insegnamenti è consultabile su EasyAcademy.

## ESAMI

Modalità d'esame

Written test and an oral exam.

Modalità di accertamento

Students will evaluated on:

- the knowledge of the course contents

- communication skills

- problem solving skills