B027352 - PHYSICS II

Italian

Electricity. Magnetism.
Dielectric materials.
Magnetic materials. Maxwell equations. Electromagnetics waves.
Introduction to modern physics.

Part II
P. Mazzoldi, M. Nigro, C. Voci
Elementi di Fisica - Elettromagnetismo e Onde
Edises, Napoli

Mara Bruzzi, Esercizi svolti di fisica generale
Editrice Esculapio - Progetto Leonardo - Bologna
ISBN: 978-88-7488-247-2

The course is intended to teach a scientific method for the analysis of main physics phenomena
on the following themes: mechanics, thermodynamics electromagnetism.
Some of the fundamental aspects of modern physics are also reviewed.

1) Knowledge of High School Maths concepts,
2) ability to correctly use such concepts in calculus.

Lessons and assignments with solutions.

written and oral exams for both Physics I: mechanics and thermodynamics and Physics II:
electromagnetism and introduction to modern physics. Oral exam is not compulsory if the
score of the relative written exam is equal or higher than 21/30.

Coulomb force, electrostatic field E, electrostatic field strength lines,
motion of a charged particle in a uniform electric field, continuous charge distributions,
electrostatic energy, electrostatic potential, electric dipole.
Flux of the electrostatic field,
Gauss's law, application of Gauss's law.
Insulation and conductors, electrostatic induction,
Coulomb theorem, potential of a charged conductor in equilibrium.
Capacity, plane, cylindrical and spherical
capacitors, energy stored energy in capacitors.
Dielectric Materials
Polarization vector P, Displacement vector D, surface and volumetric polarization charge,
Gauss law for dielectrics, dielectric constant,
dielectric susceptibility, capacitors with dielectrics.
Stationary electric current
Electrical current intensity, current density vector, continuity equation, ohms law,
resistivity and electrical conductivity, resistance, electromotive force, series
and parallel resistors, Kirchhoff's laws. Joule's Law. A simplistic model for electrical conduction
Considerations for electrical conduction in solids. RC Circuits.
Magnetostatic in vacuum
Definition and properties of the magnetic field, Magnetic force acting on a circuit.
Magnetic torque on a loop. Motion of a charged particle in a magnetic field. Hall effect.
Magnetic field generated by current circuits, magnetic field produced by infinite straight
solenoid, Biot-Savart law. Ampere's Law. Magnetic field flow, Gauss's law for magnetism.
electromagnetic forces between current wires.
Magnetic materials
Magnetic permeability, magnetic susceptibility, diamagnetic and paramagnetic materials,
magnetization vector M, H vector, ferromagnetic materials.
Variable fields in time
Faraday-Neumann's electromagnetic induction law. Lenz's Law . Induced Electromotive force
and induced electric field. Examples: alternator, Foucault currents. auto and mutual
induction coefficients L and M. Examples: L and M calculation for simple circuits. RL Circuits.
Magnetic energy. Ampere-Maxwell Law. Maxwell's equations. Dalembert plane wave equation.
Waveform, propagation speed, wave vector and wavelength. Plane and spherical electromagnetic waves.
Energy and momentum of the electromagnetic waves. Electromagnetic wave spectrum. Blackbody and
thermal conduction mechanisms.