Lecture Notes For All: Electricity and Magnetism



Monday, March 29, 2010

Electricity and Magnetism

Electricity and Magnetism

Electricity and Magnetism

Spring 2002

Professor Walter Lewin photographed during a demonstration, 
bouncing a balloon between his head and a small Van de Graaff 
Professor Walter Lewin photographed during a demonstration bouncing a balloon (sprayed with conducting paint) between his head and a small Van de Graaff generator. This demonstration can be viewed on the video of Lecture 2. (Image courtesy of Markos Hankin, MIT Physics Department Lecture Demonstration Group.)

Course Highlights

8.02 is a second-semester freshman physics class in electromagnetism. The website features lecture notes, problem sets with solutions, exams with solutions, links to related resources, and a complete set of videotaped lectures. The 36 video lectures on Electricity and Magnetism, by Professor Lewin, were recorded on the MIT campus during the Spring of 2002. Prof. Lewin is well-known at MIT and beyond for his dynamic and engaging lecture style.

Course Description

8.02 Classical Theory of Electromagnetism. In addition to the basic concepts of Electromagnetism, a vast variety of interesting topics are covered in this course: Lightning, Pacemakers, Electric Shock Treatment, Electrocardiograms, Metal Detectors, Musical Instruments, Magnetic Levitation, Bullet Trains, Electric Motors, Radios, TV, Car Coils, Superconductivity, Aurora Borealis, Rainbows, Radio Telescopes, Interferometers, Particle Accelerators (a.k.a. Atom Smashers or Colliders), Mass Spectrometers, Red Sunsets, Blue Skies, Haloes around Sun and Moon, Color Perception, Doppler Effect, Big-Bang Cosmology.
There is a build-your-own-motor contest as part of this course (see Calendar).
OpenCourseWare presents another version of 8.02T: Electricity and Magnetism.
OpenCourseWare also presents Professor Lewin's freshman physics course series 8.01 – Newtonian Mechanics - with a complete set of 35 video lecturesfrom the Fall of 1999 and 8.03 - Vibrations and Waves - with a complete set of 23video lectures from the Fall of 2004.

Special Features

Lecture Notes

7Capacitance of Spheres (PDF)
8Dielectrics and Polarization (PDF)
11Build Your Own Electric Motor - Have Fun, and Earn Extra Credit (PDF)
13Circular motion of Protons and Electrons - Particle Accelerators (PDF)
15Mid-term Evaluation Form (PDF)
16Non-conservative Fields - Do Not Trust Your Intuition (PDF)
20Faraday's Law - Most Physics College Books have it WRONG! (PDF)

Driven L-R Circuits (PDF)
21Magnetic Materials (PDF)
22Maxwell's Equations! (PDF)
23Exam 2 Review - Topics (PDF)
25Driven L-R-C Circuits I (PDF)

Driven L-R-C Circuits II (PDF)
26Oscillating Sound Cavities - Fundamentals of Wind Instruments (PDF)
27Travelling Electromagnetic Waves (PDF)
29Speed of EM Waves in Matter - Index of Refraction (PDF)

Color-Wavelength Chart (PDF)
3115 Questions about Rainbows (PDF)

Key Angles for the Primary Rainbow (PDF)
32Exam 3 Review - Topics (PDF)

Video Lectures

Special software is required to use some of the files in this section: .mp4.

Professor LewinThe Muses
The charming MIT Muses surprise Walter Lewin during his last lecture, #36. (Photo by Markos Hankin, MIT Physics Department Lecture Demonstration Group. Used with permission of The Muses, MIT's all-women's a cappellagroup.)

Course Introduction
1What holds our world together? - Electric Charges (Historical) - Polarization - Electric Force - Coulomb's Law
2Electric Field - Field Lines - Superposition - Inductive Charging - Dipoles - Induced Dipoles
3Electric Flux - Gauss's Law - Examples
4Electrostatic Potential - Electric Energy - eV - Conservative Field - Equipotential Surfaces
5E = -grad V - More on Equipotential Surfaces - Conductors - Electrostatic Shielding (Faraday Cage)
6High-Voltage Breakdown - Lightning - Sparks - St. Elmo's Fire
7Capacitance - Field Energy
8Polarization - Dielectrics - The Van de Graaff - More on Capacitors
9Currents - Resistivity - Ohm's Law
10Batteries - EMF - Energy Conservation - Power - Kirchhoff's Rules - Circuits - Kelvin Water Dropper
11Magnetic field - Lorentz Force - Torques - Electric Motors (DC) - Oscilloscope
12Review Exam 1 (Secret Top!)
13Moving Charges in B-fields - Cyclotron - Synchrotron - Mass Spectrometer - Cloud Chamber
14Biot-Savart Law - Gauss' Law for Magnetic Fields - Revisit the "Leyden Jar" - High-Voltage Power Lines
15Ampere's Law - Solenoids - Revisit the Kelvin Water Dropper - Midterm Evaluation
16Electromagnetic Induction - Faraday's Law - Lenz Law - Complete Breakdown of Intuition - Non-Conservative Fields
17Motional EMF - Dynamos - Eddy Currents - Magnetic Braking
18Displacement Current (Difficult Concept) - Synchronous Motors - Induction Motors - Secret Top, How does it work?
19How do Magicians levitate women? (with demo) - Electric Shock Treatment (no demo) - Electrocardiogram (with demo) - Pacemakers - Superconductivity (with demo) - Levitating Bullet Trains - Aurora Borealis
20Inductance - RL Circuits - Magnetic Field Energy
21Magnetic Materials - Dia-, Para-, and Ferromagnetism - Prize Ceremony of Motor Contest
22Hysteresis - Electromagnets - Bohr Magneton - Maxwell's Equations - 600 daffodils
23 Review Exam 2
24Transformers - Car Coils - RC Circuits
25Driven LRC Circuits - Resonance - Metal Detectors (Beach/Airport)
26Traveling Waves - Standing Waves - Musical Instruments
28Index of Refraction - Poynting Vector - Oscillating Charges - Radiation Pressure - Comet Tails - Polarization (Linear, Elliptical, and Circular)
29Snell's Law - Refraction - Total Reflection - Dispersion - Prisms - Huygens's Principle - The Illusion of Color - The Weird Benham Top - Land's Famous Demo
30Polarizers - Malus's Law - Brewster Angle - Polarization by Reflection and Scattering - Why is the sky blue? Why are sunsets red? - The sun will set in the lecture hall!
31Rainbows - A modest rainbow will appear in the lecture hall! -Fog Bows - Supernumerary Bows - Polarization of the Bows - Halos around the Sun and the Moon - Mock Suns
32Review Exam 3
33Double-Slit Interference - Interferometers
34Gratings - Resolving Power - Single-Slit Diffraction - Angular Resolution - Human Eye - Telescopes
35Doppler Effect - The Big Bang - Cosmology
36Farewell Special - Bring a Friend!

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