


Politecnico di Torino  
Academic Year 2015/16  
20AXPMK, 20AXPLX Physics II 

1st degree and Bachelorlevel of the Bologna process in Energy Engineering  Torino 1st degree and Bachelorlevel of the Bologna process in Electrical Engineering  Torino 





Subject fundamentals
The aim of the course is to introduce the main physical principles related to classical electromagnetism, including the propagation of light considered as an electromagnetic wave. The course provides insights on multidisciplinary topics related to electromagnetism giving special emphasis on the description of the experimental concepts and to several technological applications.

Expected learning outcomes
The goal is the acquisition of the basic principles related to electromagnetism, electromagnetic waves and optics.
The fundamental applications of each law are shown with the aim of providing the student with a method for the interpretation of the physical phenomena which are at the basis of many engineering problems. Ability to set up and solve physics problems at intermediate level, in the field of electromagnetism and waves. 
Prerequisites / Assumed knowledge
 The subjects and the methods studied in Physics I Course (mechanics and thermodynamics)
 Basics of mathematics and geometry (vector calculus, differential and integral calculus) 
Contents
Static electric field in matter: conductors. Capacitance and capacitors. Energy density of the electric field. Dielectric materials. Conduction. Current intensity and current density. Direct current. Resistance. Ohm’s law. Resistivity and conductivity. Electric power. Joule effect.
 Magnetic field and magnetic induction. Force on a charge moving in a magnetic field. Magnetic force on a currentcarrying conductor. Sources of magnetic field. Field of a straight currentcarrying conductor: Laplace’s law, and its applications. Magnetic field of a circular current loop. Magnetic dipole. Torque on, and potential energy of, a magnetic dipole in a magnetic field. Forces between parallel currents. Ampère’s law and its applications. Magnetic fields in matter.  Faraday – Henry – Lenz law of electromagnetic induction and its applications. Inductance and selfinductance. Energy density of the magnetic field. AmpèreMaxwell law. Maxwell equations.  Electromagnetic waves. Energy and momentum of electromagnetic waves. Radiation pressure. Polarization of light. Wave optics: interference and diffraction. Basics on geometric optics. Photons. 
Delivery modes
Problems and exercises related to the lessons subjects will be solved in the tutorial classes.

Texts, readings, handouts and other learning resources
 Mazzoldi, Nigro, Voci, Elementi di Fisica, vol. 2, Elettromagnetismo e Onde, Edizione II, Edises
 Serway, Beichner 'Physics for Scientists and Engineers, Volume 2, Saunders College Publishing  Additional learning materials will be supplied by the teacher 
Assessment and grading criteria
The exam involves a written and an oral proof. The written proof includes simple problems (either symbolic or numeric) and questions about all the subjects of the course. The total allotted time is 2 hrs. The written proof is passed with a total score of at least 18/30. The oral proof is about all subjects treated in lectures. The final mark is a weighted average of written/oral scores.

