Lec 22 | MIT 8.02 Electricity and Magnetism, Spring 2002

[bebeheuy]

I Love The Video It Can Increase My Knowledge Hysteresis Electromagnets Bohr Magneton Maxwell's Equations

[Mjhond]

Steady I Really Like This Video Hysteresis Electromagnets Bohr Magneton Maxwell's Equations

[OKMUNWURX]

If the Curie point is 770^ C for iron and the Earths core is molten iron (>770^C), then how do the magnetic poles stay created?

[bearpatch626]

so what would happen if you use a rodin coil with the center a dimagnetic material wrapped with the wire.... then diamagnetic material on the outside? would you in theory be able to lif that object at a certain current or fequency?

[viktorgoa]

@junior1984able f-force

[junior1984able]

@viktorgoa it was a joke, guy , 

[smarnold666]

@junior1984able its electromotive force its like potential difference or voltage.

[tejinderbrar]

This man is a God

[QuarkToo]

Too bad Lewin did not place an old mechanical amp meter in his PMH coil which would have shown current flow when there is no current flow. Since nothing connects the amp meter to the coils other than copper wire he would not have been able to explain why the spring in the amp meter stays compressed.

While I enjoys his lectures, he skips past those experiments that can't be explained using classic EM theory thus making his hollow.

Why don't you add that AMP meter and explain that Mr. Lewin?

[wreynolds1995]

@QuarkToo He does say at one point early on that certain things are actually better explained using quantum mechanics and that's "beyond the scope of this course". It's not meant to be quantum mechanics, it's meant to be classical EM theory.

[oshmunnies]

Does anyone know what lecture Dr. Lewin talks about inductance and magnetic field energy??

[samehum]

@oshmunnies Lecture 20

[jarrodbegg1]

undertaking my applied electromagnetism module and this was a great help. thank you

[Yami7761]

HE IS IN MIT I AM IN INDIA. ITS WONDERFUL HOW HE INSPIRES ME AS IF HE IS TALKING TO ME LIVE.

[SpankbankINC]

I love it. I can go from a Harlan KY to MIT lecture in seconds. Thank you cool hair cut dude.

[AgentChaos1337]

Is...he wearing a cucumber?!

[withjrock]

This lecture is absolutely brilliant. Many thanks to the lecturer. I was just watching for fun, and I gained a great deal regarding magnetic makeup of an atom (which I hadn't even bargained for). I'm going to watch ALL of the MIT posts... these ROCK.

[toogsh1]

cool chalk!!!

[Shockszzbyyous]

feramagnetic as in farriet ?

[ncbookz]

quantization proves time does not exist and it is a given otherwise you would never reach your front door

space can not be continuous it has to be discreet

[wolverine51401]

great! great! great! thank this totally helped me for my experiment

[vanstin]

that was spectacular!!! ^^

one of my favorite videos

[sanjeewa888]

Im doing eng at monash...this totally helped me through one of our units..thank you..this is amazing stff...

[culpritdesign]

amazing