Proof (Advanced): Field from infinite plate (part 1)

[CompWhizz]

I wish i had discovered khan academy for my A levels physics class it would have helped me increase my C to an A definitely

LOVE UR TEACHING!!!

[kourosh89]

Why is he treating the ring like a particle?

[PhilWithCoffee]

Hey Sal, I hope you have time to answer this. Perhaps I missed it, but what book are you getting these problems from? If would help if we knew so we could follow along more easily. Thanks for all the work, these are great videos!

[Plutoniummatt]

this is such a complicated way of doing it....why not use gauss' law bro

[oddvidios]

@Plutoniummatt cus that would be circular logic

[Plutoniummatt]

@oddvidios not really :/ all your assuming is that a point charge produces spherically symmetric radial field distribution.

[sidomo]

I LOVE U!

[Jays0n54]

no he's right sin=o/h cos=a/h tan=o/a

i remember it by as long as u remember it in order of sin cos and tan.. i use the ohahoa acronym or o for opposite h for hypotenuse and a for adjacent which u can also remember it as oscar has a heap of apples

[Plutoniummatt]

@Jays0n54

or the japanese-like phrase...

Soh-Cah-TOA

[aiund123]

@Jays0n54

cat and horses cat

tress of allah toa

suns of heat soh

yes yes i no its weird :P

ahahah

thats how i memorized them xp lmfao

[Dynamics18]

your talking about sec ^_^.

[brco2003]

I'm going in sequence on the calculus playlist and I'm on this video. I'm very lost. This seems more like physics and not calculus. Although it looks very interesting.

[sentriclecub]

Yeah this is physics, and assumes the viewer has a built-in understanding of the calculus needed to understand this concept which confounds me! Had to watch it 3x, but was worth it. I understand it so much better than my book presents.

[kourosh89]

@sentriclecub I also watched it 3 times (exactly). Your comment made me feel better about spending so much time trying to understand it.

[captjs01]

dude it should be the solution of infinite disk of charge instead of infinite sheet of charge..what u say abt that

[sentriclecub]

an infinitely large disk is just as infinitely large as an infinitely large rectangle (assuming you believe a plane is rectangular, which it is not, a plane is ALL 2-d space)