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Uploaded by: bdiz86
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General review of Maxwell's equations, along with some cameos from the great physicists that have contributed to electromagnetism.




Tags for this video: Ampere electricity electrodynamics electrostatics Faraday Gauss humor magnetism Maxwell nerd physics

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Your curl of E at ... ( 10 months ago by RainbowWerewolf)
Your curl of E at 22 seconds is wrong.
It should be -dB/dt
Yeah, thanks for ... ( 10 months ago by bdiz86)
Yeah, thanks for pointing it out. I'm not sure if I even have the file anymore to re-make it. Another erratum to Griffiths?
Lots of your ... ( 9 months ago by oztronix)
Lots of your formulas ending with "=0"
Don't think so, what book you WRONGLY have this taken from ?...
Dude, only two of ... ( 9 months ago by bdiz86)
Dude, only two of them are wrong, and its the same mistake because I used the same picture twice. Its at 0:22 and 1:05 for del x E = 0. It should be del x E = - partial(B) / partial(t). (Although technically for the case of a static magnetic field (B = 0), this is true). As for the others, I just checked again in Griffiths to make sure, and yeah, they are all correct.
In the case of ... ( 9 months ago by bdiz86)
In the case of Surface Integral of B * dA = 0, again, it is true that along a line, aka, Line integral of B * dl != 0, as it is mu_0 * I_encl, but for a closed surface, it is zero, as the field lines all cancel out (makes E&M much easier when stuff cancels out like that, especially when doing Gauge Transformations on it) If you look at 0:21 to 0:22, you can see how I have made this distinction.
Case: del * B = 0. ... ( 9 months ago by bdiz86)
Case: del * B = 0. In order to create a magnetic field, you either need a changing electric field (Faraday's Law), or you need an electron to move somewhere (Ampere's Law). If you draw out the diagram of a source point and draw divergence lines around it, you can see where the electric field is created. But those field lines aren't changing direction, they are constantly going in a single radial direction. Hence, no magnetic field.
curl B = J means ... ( 9 months ago by teslaandlyne)
curl B = J means the mag field encircles the current J, a tube along the exterior of a wire carrying current lets say. curl E = -dB/dt is AC to start with and has E, which is a straight vector, anchored in a circular path. Quickly going back and forth tangent on a ring path. If B is radial, as in Tesla's vortex coil, the path is more evident.
Formulas ending in ... ( 9 months ago by teslaandlyne)
Formulas ending in zero mean there is no source. For the mag field B, del B = 0 because its an endless loop and goes back on itself. Its a closed circle. The might be many such things in the air or ether.
Wasn't it that if ... ( 9 months ago by bdiz86)
Wasn't it that if del*B != zero, then it would explain magnetic monopoles, if they did exist. Actually, Maxwell's equations beg for magnetic monopoles, but we currently "know" that they do not exist.
Array ( 8 months ago by ycalm)
HAHAHAHAHAHAHAHA
job well done
HAHAHAHAA, Best ... ( 8 months ago by StudFI)
HAHAHAHAA, Best video ever!
Array ( 7 months ago by Max11551)
HAHAHAHAHAHA
Sweet!!!
adding to favorite ... ( 7 months ago by thoughtheglass)
adding to favorite to watch every day before exams!
I have an oral text ... ( 6 months ago by 00TrissMerigold00)
I have an oral text about Maxwell's equations tomorrow. I don't know whether to laugh or cry watching this video =)
Sorry, I meant " ... ( 6 months ago by 00TrissMerigold00)
Sorry, I meant "test" =)
damnnn-iitt!! Nice ... ( 5 months ago by MajorUtah)
damnnn-iitt!! Nice job.... *XD
How do we know? It ... ( 5 months ago by dramorez)
How do we know? It might be we simply haven't discovered them yet. Our particle accelerators might simply not be up to the task of creating magnetic monopoles. Anyways, cool film! I'm actually studying this book(Griffiths) right now and have an exam of it on monday. I'll probably be thinking of the mortal combat song the whole exam now ;).
a2+b2=c2 ( 4 months ago by ttt6973)
a2+b2=c2
this is the end of ... ( 3 months ago by kanepart2)
this is the end of all my Electromagnetic woes
Array ( 3 months ago by BrodyPianist)
erm
lol
griffith for the win
nice, I'm adding ... ( 3 months ago by eldominicanboy)
nice, I'm adding this to my favorites
... ( 1 month ago by lolhun1988)
LOooooooooooooooooooool :D FAVORITE!!!!!
Ya know, i learned ... ( 3 weeks ago by TheBestAboveTheRest)
Ya know, i learned nothing, but it was still cool
This video was ... ( 2 weeks ago by neil1337)
This video was disappointing because I wanted it to explain the equations.


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