Learning objectives
The aims of this course are pointed out as follows: 1) knowledge of the electromagnetism basic notions 2) resolution of some simple problem, 3) applications of the classical electromagnetism . Then in this course, although the rigorous formalism will be used, a great importance will be devoted to the exercises and the practical applications.
Prerequisites
<br />mathematics: vectors, derivative, integrals and resolution of simple differential equations<br />physics: point dynamics, rigid body dynamics , gravity
Course unit content
<br /> The following plane is divided in two parts: in the first one the basic arguments, which the student must knowledge, are listed; in the second one there are arguments that will be considered according to the available time and to the answer of the students.<br /> A) Basic arguments<br /> A1) Static electric field: electrical charge, Coulomb's law, electric field, Gauss's law and 1st Maxwell equation, electrical potential, electrical, conductors, electrical capacitance, capacitors, arrangement in series and in parallel, energy of the electric field; the polarization of matter, electric susceptibility<br /> A2) Electrical current : current density, electrical resistance and Ohm law, dissipation and the Joule effect, electromotive force e generatori elettrici,electrical circuits in c.c.<br /> A3) Static magnetic field : Lorentz force, magnetic induction vector, magnetic force on an electric current, magnetic moment of a closed current loop, mechanical and magnetic moment, fields produced by electric currents, Biot e Savart's law (magnetic field of rectilinear current of a circular current and of a solenoidal circuit), 2st Maxwell's equation, Ampere's theorem.<br /> A4) Time dependent magnetic field: induzione elettromagnetica, Faraday-Newmann'law, 3st and 4st Maxwell' equations, self-induction, RL circuit, magnetic energy;<br /> A5) Waves: waves propagation, wave equation, kinds of waves, phase velocity, Electromagnetic<br /> waves, equation of the electromagnetic waves and their properties, plane and sferical waves, energy<br /> of an electromagnetic wave and Poynting vector, spectrum of the electromagnetic radiation<br /> B) Additional arguments<br /> B1) Polarization of matter: dielectric constant, microscopic interpretation, electrical suscettivity<br /> B2) Magnetism in the materia : B,H and M vettors, paramagnetism, ferromagnetism , diamagnetism, Curie's law, hysteresis<br /> B3) Polarization of the ligth: birefringence and quarter-wave and half-wave plates<br /> B4) Ottica: Fermat's principle , reflection and refraction (mirror and lens), interference<br /> (Young'experiment); diffraction e resolving power
Bibliography
<br />All the texts of Elettromagnetism for scientific courses. <br />The lectures are often extracted by C. Mencuccini, V.Silvestrini "Fisica II: elettromagnetismo Ottica", Liguori Editore
Teaching methods
<br />1) theoretical lectures at the blackboard by developing each argument with completeness(without neglect the calculations and the denstrations)<br />2) exercises that each student carries out with my guide after that I eleborated some typical example at the blackboard
