# PHYSICS II

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Versione italiana
2021/2022
Teacher
VIRGINIA STRATI
Credits
6
Didactic period
Primo Semestre
SSD
FIS/04

#### Training objectives

The aim of the course is providing the fundamentals on electrostatics and magnetostatics. The topics of the course will be treated in the framework of Geological Science applications.

#### Prerequisites

- Mathematics
- Physics I (Mechanics and Thermodynamics)

#### Course programme

ELECTRICAL FORCES AND ELECTRIC FIELDS
• Properties of electric charges
• Insulators and conductors
• Coulomb's law
• Electric fields
• Lines of electric field
• Motion of charged particles in a uniform electric field
• The electrical flow
• The Gauss theorem
• Applications of Gauss theorem in symmetric distributions of charges
• Conductors in electrostatic equilibrium

ELECTRIC POTENTIAL AND CAPACITY
• Electric potential and potential difference
• Electric Potential in a uniform electric field
• Electric potential and potential energy electric point charges
• Electric potential due to continuous distributions of charge
• Electric potential of a charged conductor
• The ability
• Connection of capacitors
• Energy stored in a charged capacitor
• Capacitors with dielectrics

CURRENT AND CURRENT CIRCUITS
• The electric current
• Resistance and Ohm's law
• Superconductors
• A microscopic model for the electric conduction
• Energy and power in electric circuits
• Sources of electromagnetic force
• Resistors in series and parallel
• Circuits RC

FORCES AND MAGNETIC FIELDS
• The magnetic field
• The Earth's magnetic field
• Motion of a charged particle in a uniform magnetic field
• Applications of the motion of charged particles in a magnetic field
• Magnetic force on a current-carrying conductor
• Moment of forces acting on a coil in a uniform magnetic field
• Biot-Savart law
• Magnetic force between two parallel conductors
• Theorem of Ampere
• The magnetic field in a solenoid
• Magnetism in matter

#### Didactic methods

The course consists of alternating lectures on theoretical and practical.
• Lectures on the topics of the course program. During the same it is provide a continuous interaction with the students, offering reference to the content of other courses, particularly physics 1, mathematics and geophysics.
• Tutorials on the model of the written exams. The exercises are intended not only to provide the solution of the problems but also to teach a method for solving physics problems.

#### Learning assessment procedures

The exam takes place when the student passes (with vote greater than 18/30) one of the following methods of verify:
• two in itinere tests, which are generally fixed in the middle and at the end of the course. The first test refers to topics relating to electric forces, electric fields, electric potentials and capabilities. The second test focuses on topics related to currents, forces and magnetic fields. The final score is the average of the two scores, which in any case must be both greater than 18/30.
• a written examination focused on the entire program of the course.
During the written tests you can refer to a form on an A4 sheet and use the calculator. It is not allowed to consult texts, personal notes or using your PC or smartphone. The oral exam is optional.

#### Reference texts

Fisica per Scienze ed Ingegneria - Vol. 2
Serway Raymond A. - Jewett John W.
Ed.: Edises
Edizione: IV / 2009
ISBN: 9788879595346

Further material might be provided by the professor.