28628 - General Physics T-B

Course Unit Page

SDGs

This teaching activity contributes to the achievement of the Sustainable Development Goals of the UN 2030 Agenda.

Affordable and clean energy Industry, innovation and infrastructure Sustainable cities Responsible consumption and production

Academic Year 2021/2022

Learning outcomes

Giving the students the tools to learn the experimental scientific method, the basic physical grounds of ElectroMagnetism and its technological applications. 

Course contents

ELECTROSTATIC

  • Electric charge and its conservation
  • Isolating and conductor materials
  • Charge induction
  • Coulomb Law
  • Electric field
  • Electric flux for continuous charge distributions
  • Gauss theorem and applications
  • Conservative forces and potential
  • Electric potential
  • Examples of different analytical distributions 
  • Electric dipole
  • Electrostatic energy, the electronvolt
  • Electric capacity
  • Serial and parallel capacitors
  • Capacitors and dielectrics
  •  

ELECTRIC CURRENTS

  • The battery
  • The electric current
  • The Ohm's Law. Resistance and resistivity
  • Electric power, applications to common circuits
  • Alternating current
  • Serial and parallale resistances
  • Superconductors
  • Electromotive force and tension between terminals
  • Kirchoff's laws
  • Electromotive force in serial and parallel
  • RC circuits

MAGNETISM

  • Magnets and magnetic fields
  • Magnetic force around a wire
  • Lorentz force and Larmor radius
  • Hall effect
  • Magnetic moment
  • Magnetic force between conducting wires
  • Ampere's law
  • Biot-Savart's law
  • Ferromagnetism and hysteresis
  • Induced electromagnetic force
  • Faraday's law and electromagnetic induction
  • Lenz' law
  • Induced electromagnetic force in a moving  conductor
  • Electric generators
  • Foucault currents
  • Mutual inductance
  • Self-inductance
  • RL, LC circuits

CHAPTERS IN GIANCOLI'S TEXTBOOK (EXAMPLES INCLUDED):

 

• Chap 21: 1-11 included 

• Chap 22: 1-3 included

• Chap 23: 1-8 included

• Chap 24: 1-6 included

• Chap 25: 1-8 included

• Chap 26: 1-6 included

• Chap 27: sections from 1 to 6 (included) + section 8;

• Chap 28: sections from 1 to 10 (included);

• Chap 29: sections from 1 to 4 (included) + sections 6 and 7;

• Chap 30: sections from 1 to 4 (included).

Readings/Bibliography

  • Giancoli, Fisica 2, second editon (Publisher: Casa editrice Ambrosiana, 2010)
  • Lectures (slides) uploaded in the University web portal, covering all topics taught during lecture. Most of this material follows from previous years lectures by Prof. Carbone. 
  • Additional exercises of electromagnetism given during the course as slides.
  • A collection of ~140 exercises with solutions, given at the end of the course. 

Teaching methods

  • Discussion of fundamental principles of electromagnetism
  • practical experiences (easy to replicate even after lecture) in order to better acquire the main concepts taught at lecture
  • quantitative exercises for the application of theory
  • historical and social background of most important achievements of electromagnetism.
  • usage of the Kahoot! web-based platform for to check the class learning curve live (https://kahoot.com)
  • Online Quiz (also similar to the final exam) available on the IOL space.

Assessment methods

During lecture: several live exercises, involving students in the solution.

Usage of the Kahoot! web-based platform for to check the class learning curve live (https://kahoot.com)

Outside lectures: personal meetings during receiving hours.

Update (with respect to 2020/21):

the final exam consists in a written test (of about 90 minutes), consisting in a few theory questions, and in 2 numerical exercises (problems). 

Students can, if they have a mark equal or larger than 23 in the written exam, to also take an oral exam, in any date after the written test. 

Only the last written exam in TB is considered to give the final mark (not the best one, as in the past). A student who got already a >=18 mark in a previous TB exam can chose to try again, but unless he/she withdraw from the exam before the end, the grade in this exam (including an not sufficient one) is the new one which is considered in the final TA+TB grade. 

The final mark of the TA+TB exam consists of the arithmetic mean (rounded up) for the two marks in the TA and TB modules.

The "Lode" in the final exam is automatically assigned if there are two 30L in the two partial exams (TA and TB), or is discretionary to the professors, in case a 30L is obtained only in one of the two partial exams. 

Teaching tools

  • Several experiments and examples showed during lectures by the teacher.
  • Video contributions to show practical applications in modern technology or spectacular physical phenomena can be seen also here.
  • Online Quiz (also similar to the final exam) available on the IOL space.  

Links to further information

https://vimeo.com/showcase/5419982

Office hours

See the website of Franco Vazza