Lecture 3: Electric Flux, Gauss's Law, Examples
recorded by: Massachusetts Institute of Technology, MIT
published: Oct. 10, 2008, recorded: February 2002, views: 86378
released under terms of: Creative Commons Attribution Non-Commercial Share Alike (CC-BY-NC-SA)
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Description
"Today we're going to work on a whole new concept and that is the concept of electric flux. We've come a long way. We started out with Coulomb's law. We got electric field lines. And now we have electric flux.
Suppose I have an electric field which is like so and I bring in that electric field a surface, an open surface like a handkerchief or a piece of paper. And so here it is. Something like that. And I carve this surface up in very small surface elements, each with size DA, that's the area, teeny weeny little area, and let this be the normal, N roof, the normal on that surface.
So now the local electric field say at that location would be for instance this. It's a vector..."
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Reviews and comments:
thats a great video thanks sir
thanks professor for this great work..i am a student at engineering faculty (Egypt)..
i am asking if there anyone with whom we can share the knowledge about physics??
can i ask for help?
can u answer this questions for me?
"Surface charge densities of 200,-50 and psxµC/m2 are located at r=3,5, and 7 cm respectively. find D at r=4cm? find psx if D=0 at r=7.32 cm?
thanks. ill wait for response. i'll just find it hard to solve.
It's Superb. Not any comments or not a sigle word to describe this lecture.
It's wonderful and too much effective.
Respected Sir,
Professors like you inspire us to live Physics,breathe Physics.Your lecture make us believe-"Physics is beautiful".
regards
R.K.Agrawal
Thank you sir,that's a really good lecture.
I'm a student at material engineering in China,I want to know if there's some websites we can share our knowledge about Physics. Thank you.
I, student of class inter, am realy very impressed to respected sir WALTER g.h lewin because of his carismatic work in the field modern physics. His guidence is very use ful for students of all over the world, who are interested in the modern physics
sir,
I'm a junior mechanical engineering major. Having taken this class as a freshman, I now realize why MIT is so selective and expensive. I'm taken aback at the amount of content this course covers per lecture, the gift Dr. Lewin has for teaching, and the things I'm learning as I watch.
By putting these lectures on the Internet, MIT is giving the world an invaluable gift.
thanks for that lecture professor.am a student at kenyatta university.
I AM a STUDENT IN ADAMA UNIVERSITY IN ETHIOPIA THE DEPARTEMENT OF ELECTRICAL ENGINEERING.
THANKS FROFESSOR FOR YOUR POTENTIAL TO CERATE MANY APPLICATION FOR PHYSICS.
IF YOU HAVE ANY COMMENT
WRITE IN THIS E/MAIL
lingerewguadie@yahoo.com
sir give some physics videos for engineering students.
Prof. Lewin lectures are simply wonderful.
a really nice lecture sir
thanks a lot
i am a class 12 student in India preparing for iit and all your lectures really help me.
no comment
I'm a petroleum student at the University of Stavanger(Norway), i appreciate this lectures and sir himself
No comments
I'm student of software engineering and I always be boring in physics lessons.If this man was my teacher,I would be in class every lesson.
the lectures of electricity and magnetism are perfect
any one have english subtitles
This lecture was awesome .-
sir , very nice lecture. Thanks a lot sir.
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