Dielectrics in capacitors | Circuits | Physics | Khan Academy

[@mungy27]

i learned more in 7 min here than in 3hrs in my physics course thanks

[@Rawteeth]

ikr? What magic is this?

[@ngxinloo3323]

True

[@chenmorris7614]

exactly

[@snehamoyidas3468]

So true

[@hackedcj7753]

Same here🤣

[@nadiequintero9981]

This is the ultimate way to teach physics, with moving images. Most of us aren't capable to follow along a 2 hour long explanation of how this works without any visualization. With a proper illustrarion of the concept, a 6 min video was enough to save my ass from a test! Thank you so so much to everyone who contributes in Khan Academy.

[@Sambubhai0005]

Exactly.....they should understand that we want visualisation to understand physics😔.

[@stepbystepscience]

Excellent, straight forward explanation.

[@BlueEyes-WhiteDrag0n]

Hey its THE REAL STEP BY STEP SCIENCE !!!

[@swarnendubanerjee8089]

@@BlueEyes-WhiteDrag0n Kindly follow and subscribe the channel too for better understanding.. kzbin.info/www/bejne/aHnMg6SOeMh8oq8 Thanks

[@mindfreaks1681]

idk why should we spend money and effort in university and keep listening to old people that they dont know how to deliver the concept to us staying at home and watching this is just perfect to me thx i loved it all :)

[@mindaugaskazlauskas5530]

Mind Freaks that's right, there should be possibility just to pay for exams. If someone have enough knowledge to pass exams, when they should have possibility to get diploma. Diplomas only shows what person have competence to do whats is waited on it. In old times people had to go to university to get information, these days smart people can get information easily at home.

[@mohammedalhabshan5238]

Now we are staying at home :)

[@swarnendubanerjee8089]

@@mindaugaskazlauskas5530 Kindly follow and subscribe the channel too for better understanding.. kzbin.info/www/bejne/aHnMg6SOeMh8oq8 Thanks

[@MinkFranchise]

@@mindaugaskazlauskas5530 Only half correct... it also shows a person had the powers of focus, dilligence, tenacity, and dicipline to complete something complex, organized, and challenging over an extended period of time without flaming out... Many people after cramming for exams on youtube would totally flame out over time...not retain information, and be horrible people to depend on when trying to forward your business.

[@allenwang3331]

This video is a gift from the God.

[@mechikaboombayah4960]

Allen Wang and the god is KhanAcademy

[@BlueEyes-WhiteDrag0n]

+Nisa_Tandon Now thats just Sucking his Balls 😑

[@smilingkanye7392]

YES

[@swarnendubanerjee8089]

@@mechikaboombayah4960 Kindly follow and subscribe the channel too for better understanding.. kzbin.info/www/bejne/aHnMg6SOeMh8oq8 Thanks

[@swarnendubanerjee8089]

@@BlueEyes-WhiteDrag0n Kindly follow and subscribe the channel too for better understanding.. kzbin.info/www/bejne/aHnMg6SOeMh8oq8 Thanks

[@anuraagkaravadi1640]

one of the best tutorials i have ever watched .Great job!!!

[@wernerkroneman]

This was SO simple to understand.

[@VG__]

I am blown away😯Is this how much simple, intersting and LOGICAL physics is?🥺omg, why teachers let us just mug up those sophisticated mathematical equations whn physics can be explained this way🥺🥺🥺❤️❤️❤️You are a gem I tell u. Thankyou🙏

[@wigglemeable]

No joke, I've never had someone explain this to me in such a simple way.

[@wigglemeable]

I still have questions. 1- with an insulator (dielectric) how is a capacitor a direct short when a charge is first put to it. And 2 - adding a capacitor, does that extra load cause the battery to drain faster?

[@alwaysdisputin9930]

Thanks. That helped me to understand things where other videos failed: The capacitor has 2 plates. The battery pushes electrons onto 1 of the plates until it's crammed with electrons & the battery can't push any more on. Inserting a dielectric increases capacitance because 1) the electrons (in the dielectric's atoms) lean towards the positive plate of the capacitor 2) therefore, each atom in the dielectric becomes polarised = 1 side is negative & the other side is positive 3) near the positive plate, there are some dielectric atoms. The negative sides of these atoms cancels out some of the positive plates positive-ness 4) near the negative plate, there are some dielectric atoms. The positive sides of these atoms cancels out some of the negative charge on the negative plate 6) thus the negative plate becomes less negative 7) the battery is now able to push more electrons onto the negative plate - thus the capacity of the negative plate to hold electrons has increased

[@asmahaque8558]

I LITERALLY CLAPPED AFTER THIS. YOU GODSENT!!!!

[@jacobvandijk6525]

Doing physics and still thinking there is a god???

[@alieser7770]

@@jacobvandijk6525 that's not the point you edgy atheist

[@jacobvandijk6525]

@@alieser7770 O, really? ;-)

[@alieser7770]

@@jacobvandijk6525 unfortunately

[@shorifulhaque5137]

@@jacobvandijk6525 How ya doin mate. Could you give an insight into how physics disproves the existence of a higher power? Thanks. If everything that begins to exist has a cause and the universe had a beginning, then the universe has a cause. This 'cause' must not have a cause as that would result in an infinite chain that would mean we would never have existed. Therefore, whatever this 'cause' is, we know that a) it is infinite and b)it is uncreated(meaning it has always existed; the concept of time as we know it does not exist for this being). I would love to discuss this with you mate let me know if you want to hop on discord.

[@fatimazahra-sq9wy]

the satisfaction of having all the concepts cleared in just 6 mins is just undescribable ... for the 1st time, this concept got cleared... hats off to u sir😍🥰💯💗❤💝💗💓❤‍🔥💥🔥

[@xoxo-yp1fc]

Omg this was the best teaching I ever gone through in my life Simple Neat Short period of time Amazing

[@laiwei5974]

I would give you Nobel Teaching prize

[@swarnendubanerjee8089]

Kindly follow and subscribe the channel too for better understanding.. kzbin.info/www/bejne/aHnMg6SOeMh8oq8 Thanks

[@sujayhedau8725]

you explained this better than all of my teachers combined.

[@bondsongmusic]

Thanks for this very clear explanation.

[@macovv7320]

There must be a noble teaching prize now a days (because I think many teachers who don't know how to teach have become teachers) and this guy, David, must be, along with sal, among the first ones to get it.

[@ayankhan8204]

Ooohhh bhai.. ULTIMATE !!! The real definition of TEACHING;)

[@ProtoG42]

Great explanation!

[@TheMaskedOne2G]

now this is some real skilled explanation! thank you, David Santo Pietro.

[@swarnendubanerjee8089]

Kindly follow and subscribe the channel too for better understanding.. kzbin.info/www/bejne/aHnMg6SOeMh8oq8 Thanks

[@Standard_Logic]

I like how fast you speak and the way you present the material, it's very easy to follow. Thank you.

[@tejasmd8143]

7 years later, you're still helping a lot of students. What's better news?

[@dominicestebanrice7460]

Astonishingly informative video!

[@AnandBaburajan]

How does he do it? So perfect!

[@nokkthth6697]

bro khan academy you did it again the concept that kept bugging me the whole year registered in my mind so simply and this video was uploaded eleven years ago shows how you guys were providing quality content from the beginning tysm!!!!

[@shimaekram6820]

I'm dancing! Understood it all in 6mins!

[@randomstuffswithrrd]

Well done I have my entrances next year... And Khan Academy is essential to quickly revise up things ✌️👁️

[@robertbatista50]

Wow! Just wow. While there are many videos explaining capacitors and Leyden jars, this is the best at explaining the derivation of the formula.

[@Carito680]

I've been studying this for 4 hours and needed a better way than just reading the textbook. I completely followed and I feel so much more refreshed. Thank you!

[@Marco_the_phonix]

Thanks bro 😁 , you may not get much money 💰 from here . But you have satisfied your customer/ student ❤

[@majidnesar]

I've been turning over the pages of my physics textbook since a week, until I was gifted with this VIDEO. I actually learned the concept in 7mins which I was wondering about for whole week♥️♥️♥️

[@srinuchandaka3959]

Hey❕ You literally cleared all my doubts😃 *Thank You Infinity Times*

[@vojtatesar9239]

I have needed this answer for about year but I haven't found it until now, thanks a lot!

[@arjunbarwal1502]

These 7 minutes were the golden 7 minutes of the learning schedule in morning

[@ooo-sg1xm]

I spent hours trying to understand this but now I fully understand it in under 7 mins!!! Feels good man. Thank you for the awesome video :)

[@shorifulhaque5137]

Literally a masterpiece in education

[@Rsingh1]

Vvvv'vvvvvvvvvvvv nice....... Perfect absolutely answered each of my questions... .. . . . .i just want to this video a no of likes.............

[@VardhanMittal]

i was full confused with this topic very nice explanation man! thank you for adding such a nice value in my life!

[@pawankumarofficial]

It's simple to understand ......best tutorial ever👍👍👍👍👍

[@ashishgusain4581]

This was very help fulll for me love from India

[@jaime_coca]

Am not normally a big fan of Khan Academy explanations but I must say this video is top-notch. Thanks!

[@SarfrazAli-fs3bm]

Thanks to team of Khan academy for helping me in solving my problems

[@anusha3033]

I subscribed to khanacademymedicine just because of this guy ! Gid bless him 💜

[@nasimaakter8832]

Best ever explanation! Simple but Complete!

[@abdus1902]

Loved the video!

[@mickeychan2007]

This is what I call precise and professional.

[@arsalrehman2891]

Superb explanation!

[@bijoythewimp2854]

Anything from Khan academy will always marvel me.

[@anuradhadevi1824]

So much clarity....u made things so easy for me...thank u very much sir

[@hajamohideenjaffar3837]

Literally amazing

[@ARINDAGIDEON]

VERY PERFECT

[@bilalabbas5565]

Bestest Explanation ever 💯💯💯 ThanksAlot

[@akshatrastogi9063]

This is excellent, absolutely excellent!

[@mythslife8883]

Khan Academy is the angel for our education system

[@saadsouabni]

Best explanation of dielectrics I've seen and I've been in this field for years!

[@pushpitakarmaker3633]

I was complicating it. Thank you for making it easier to understand

[@asthatiwari2648]

Got my concept cleared..loved the video...also the voice was like u r singing a song...so it was more wonderful to study

[@krazykat1412]

Thank you so much for this simplified explanation. My professor is too smart to be teaching intro to physics 2. When he lectures you can tell he knows everything so well but can’t dumb it down for students like me. 😅

[@robertgalligan7273]

Hello, I am currently doing a module as part of my electromechanical course and this was an amazing video. It was simple to follow and very informative. Thank you very much.

[@mrbeanseries9932]

speechless! fabolous explanation! Really gr8

[@hemasingh5542]

awesome explanation.I've asked several teachers but no one made me understand so nicely.

[@PhilBusby]

This is high school grade level learning, but taught in a manner for earlier-level school. This poses the question that perhaps young children should be taught the basics about sciences, so that when they go to high school the fundamentals are already understood. Someone here commented below why go to university when such videos are available. Trust me, electronics E101 at university is so so so much more complex than this!! It would certainly have helped me to have watched this video and understood such fundamentals around 10 years old.

[@antaresrepublic]

Finally I understand how there can be different voltage across different capacitor. It's the capacitance, which is related to the dielectric permittivity! Difference in dielectric permittivity results in difference in capacitance. Thus different voltage since q = c.v and the charge stays the same Thanks for the video!

[@NKULUNZIZAABDULRAHUMAN]

May God bless u with aboundant knowledge Thats why i rilly like coming to live with whites rhey r rilly intelligent IMAGINE THIS HAS TOOK ME ALMOST 10 years to understand

[@rumeenchowdhury6976]

It’s a great video! Really cleared my confusions!

[@chiramana_]

Thank you for another awesome video! But isn't the capacitance a constant that doesn't depend on the variation of charge or voltage?

[@furiousarpan7473]

What an incredible explanation mannn, hats off

[@laxmiguntupalli9470]

Thank you i learnt alot from this .......in my opinion khan academy is best to learn physics.

[@shiwanishiwani9612]

Ahh sir you are such a genius 😍 I had very problem regarding this topic but bcz of you now it is clear Thankuu so much sir 😊

[@nagasrinu3836]

Perfect explanation... simply superb..

[@tejakiran1577]

Thanks a lot .... U made me understood the clearcut idea behind dielectrics

[@leisure4707]

As the dielectric constant values increases, the polarity of the solvents__ a. Decreases b. Increases c. Remains constant d. Decreases and then remains constant

[@abdsalmansalman2162]

i read a university physics book but But in my mind many of questions but now by this video i get the answer to my questions thank you so much and i hope to you more progress

[@shikaa7102]

how can anyone on earth dislike this vedio, like... it's so goooood😭

[@koanchung5072]

Thank you. Very well illustrated☺

[@saigopal5086]

Awesome 👏

[@ATULSingh-vx5ev]

What an explanation..❤️❤️❤️

[@Panda-nt5ji]

awesome explanation thanks\

[@hibafatima5887]

Thankkkkk u soooo much I wasted 2 hrs trying to understand from my textbook

[@fredk9531]

The best explanation that I have ever came across!

[@FabihaAnbar]

This is so helpful ! Learnt more in 10mins than all my school classes combined

[@momoabdul2755]

Interesting video... Good job... Thanks for helping my understanding

[@crow1628]

this made so easy to understand, it's insane, thank you for your work!

[@NoNTr1v1aL]

What is the background music? It sounds awesome with your explanation!

[@yohanisteferi4943]

I have no word for this 👏

[@mrmeowcatlovethemeow5656]

Y'all slayed dis lesson

[@mohamedriazurrahman1456]

extraordinary explanation u r great crystal clear explanation hats off .....

[@dimaabed9768]

Thank you very much! I definitely feel better right now towards my physics exam tomorrow because of this great video! Hope I'll do good and if I do, credits will be to you Mr.SantoPietro!

[@mohammedhussein5806]

the best explanation of capacitors

[@shreyakommuri3929]

Speechless man! Really.

[@studytime5678]

Khan academy never leaves you clueless

[@cbbhvjc]

Best explanation I have seen for the purpose of a dielectric!

[@fightforfitness2256]

Best, best , best and best ... I don't have any other word to say.

[@arianhanify]

Simple and amaziiiiing🙌

[@anuskabhuyan165]

Khan academy 👏👏, hats off to u .

[@dineshmajee6462]

It's really amazing explanation ♥️

[@arijitmondal28]

Excellent simple explanations.

[@GamingChannel-ps5uy]

Better explanation than this was never an option 😎😎

[@Towardsenlightenment30]

Too good thank you so much

[@CodecFace]

Thank you! I thought this process into the ground and the one thing I was missing was that some of those charges were canceling, which explained everything. Rad vid!

[@jaleelradhu2515]

thankyou that was an articulate explanation