PHYSICS 2: ELECTRICITY AND MAGNETISM
First semester
Frequency Not mandatory
- 9 CFU
- 90 hours
- Italian.
- Trieste
- Obbligatoria
- Standard teaching
- Oral Exam
- SSD FIS/01
- Core subjects
Knowledge and understanding: to understand the fundamental principles of electrostatics, magnetism in vacuum and in materials, electromagnetism,of circuits at direct or alternate current, electromagnetic waves; to know Maxwell's equations in differential and integral form; to understand the relation between the fundamental laws of physics and the electromagnetic phenomena that will be studied later from an engineering point of view.
Knowledge and applied understanding: to be able to make calculations based on Maxwell's equations and on the various laws that enter in their final formulation, in integral and differential form.
Autonomy of judgement: to be able to apply the acquired knowledge to solve simple problems of electromagnetism in an original and creative way.
Communication skills: to be able to present, in proper and rigorous way, both in written and in oral form, simple problems and their solutions regarding electromagnetism.
Learning skills: to be able to collect, in an autonomous way, information from textbooks and other supports, including lectures, for solving problems of electromagnetism.
It is mandatory to pass the three exams of Geometry, Mathematical Analysis 1, General Physics 1. It also required to actively attend the parallel course of Mathematical Analysis 2.
Contents:
1) Electric field. Electrostatics in vacuum.
2) Conductors and dielectrics.
3) Stationary currents, Ohm and Kirchhoff laws.
4) Magnetic fields and currents in vacuum.
5) Electromagnetic induction.
6) Circuits in alternate current without forcing.
7) Introduction to mechanical waves.
8) Maxwell equations in integral and differential forms.
9) Introduction to electromagnetic waves, elements of optics.
G. Cantatore, L. Vitale, "Gettys FISICA 2, Elettromagnetismo - Onde - Ottica", McGraw-Hill, V ed.
1) Electric fields and electrostatics of vacuum
- Coulomb's law and electric field
- Gauss's law
- electric potential
2) Dielectrics and conductors
- conductors
- capacitors and capacity
- electrostatics of dielectric media
3) Stationary currents, Ohm's and Kirchhoff's laws
- current and current density
- resistance and Ohm's law
- direct current circuits and Kirchhoff's laws
4) Magnetic field and currents in vacuum
- Biot-Savart's law
- Ampere's law
- force between current-carrying conductors
- magnetic flux
- displacement current
5) Electromagnetic Induction
- Faraday's law
- electromotive force, generators and alternators
- induced electric fields
- self and mutual induction, inductance
- transformers
6) Alternating current circuits
- charge and discharge of an inductor
- description of oscillations with complex numbers
- the RLC circuit without forcing
7) Introduction and summary on mechanical waves
- wave equation
- energy, power and intensity of a wave
- harmonic waves and Fourier analysis
8) Maxwell's equations (integral and differential form)
9) Introduction to electromagnetic waves
- plane wave
- intensity of electromagnetic waves and Poynting vector
- radiation pressure
- emission and spectrum of electromagnetic waves
- elements of optics.
Classroom lectures at the blackboard.
Classroon exercises and discussion.
Student tutoring.
Course website accessible from http://moodle.units.it
The final evaluation will be based on the following tests:
- simulation of an exam, consisting in the solution of exercises similar to those of the final written exam;
- final written exam, it is necessary to pass it to be admitted to the oral exam;
- oral exam on the whole program.
The modality and details of exams will be communicated through the moodle web site.
We will evaluate the ability of the student to solve problems, and the ability to express concepts in a correct, linear and coherent way.