How a capacitor works

[baronvonsatanus]

Thanks. Just what I was looking for :-D

Please, please, please do one for inductors.

[Heriopasu]

Thanks. This is very helpful. +You have a good voice. You should do some professional narration.

[AnnoyingXboxer]

Why is she taking her shirt off? O.o

[TheNickmazz]

cool man how about inductors.

[katsumorymoto]

this explains a lot.. BUT.. in terms of actually helping me to build something that might require a capacitor, i don't really know wtf i'm doing in that regard

i probably need a damn.. *thinks of the word.. resistor or some shit anyways instead

[goaliedude32]

@katsumorymoto It is my understanding that capacitors are used in circumstances where voltage may drop too low. The capacitor will discharge when the voltage falls below a certain point and will recharge on the next peak cycle. I am also very new to this too and I had basically the same question so hopefully someone else will jump in on this and help us understand it a little better. For now i guess I am going to keep searching.

[667Atlas]

So it charges and releases energy it makes it stronger

please reply anyone

[thegangster42]

great video man

[fizzicsorg]

It depends what you want to test but you can't measure capacitance directly with a multimeter. The maximum voltage depends on the type of insulation between the plates/layers of foil. The max voltage is usually printed on larger capacitors. A capacitor fails when the insulation between the plates/layers of foil is too small for the applied voltage and a current leaks across.

[kipper09100]

@fizzicsorg

what would happen if i rip one out of my motherboard

for eg speakers i opened em up and it had those capicitors what wud happen if i rip 1 out

will it not work properly what wud happen??

[abz2000123]

thanks for the vid.

how would i test it with a multimeter, would i need / what voltage battery

and what makes it blow up due to overcharge?

thanks in advance

[megabassX]

Thanks for the vid, the best in its category

[dannyb21892]

6:00 yum Cake

[chromzepher]

Would you be able to make a video explaining the concepts of dielectric breakdown with perhaps an animation/demonstration of what happens?

[em129836]

wish this guy was my gen. physics II teacher i actually sorta understand this shit now thanx

[charles40411]

sir,,,what are u using as a insulation between the both,,is that ordinary paper or something?

[chromzepher]

@charles40411 It almost looks like the clear sticky book covering you can get in rolls in your local department stores

[UTubeisSHIT523441]

at last some good vid.

[tydrums99]

@UTubeisSHIT523441 What reason do you have to create an account with that name?

[DagGirl]

Awesome DIY cap!

We got to see the inside of a poly cap that blew up.

[0lolop35]

one person who disliked thi had no idea what he wanted to learn

[sandhyasonule1]

capacitor is made of plates and dielectric material then when it going to discharge does current pass through the dielectric material, if yes how insulating material pass current ? i got this question in my mind bcoz capacitor is analogous to lightning in which ground and cloud is two plate and air is dielectric. thank you

[jsmythib]

@sandhyasonule1 I think: In a bandpass capacitor(not electrolytic) the ac signal being applied to one plate has an opportunity to resonate the plate generating a magnetic field- its optimum resonance would be determined by the size of the plate and the dialectric. The second plate picks up that fluctuating magnetic field. This is why caps are used to decouple ac/dc..because dc does not fluctuate it cannot pass the dialectric...I think im pretty close but I hope that helped :)

[supermanXL]

Thanks you are a great help

[vishnukartha47]

Realy thanks for uploading ,can you tell me the worling of capacitorfilter

[vamsi361]

thanks we can get clear view on capacitor

[UncleKennybobs]

Very nice.

[utsavman47]

but how is the capacitor useful ?

[josenros]

Does increasing the emf of the battery increase the capacitance?

[Usman6060]

@josenros wow...what a video\1

[Usman6060]

@josenros 

[skrapmetal]

I would love to see how a flux capacitor works also

[67tr876]

can a 55mf 120 volt cap hold more them 120 volts ?

[EdisonTechCenter]

So far the only video that shows graphically what the electrons are actually doing in a capacitor are on the new video on the EdisonTechCenter Youtube channel.

[lwanatt]

this is all very interesting but it doesnt do what the title says its going to do. it does not explain how the capacitor works by any extent of the imagination. There must be some sort of law that explains why supplying one side capacitor with charge causes the other to develop negative charge.

[PanayotiProductions]

@lwanatt There's something wrong with the flux capacitors! you suck! ya jackass!

[MassSemtex]

@lwanatt i agree with u there 

[domyaska]

thanks a lot!

[zker666]

Very helpful and detailed

[hazemabdulrab]

this video is perfect.. 2 factors affect the capacitance ..1)area of the plates 2) type of insulation 3)distance between the plates

the higher the capacitance , the lower the voltage rating

the higher the voltage rating, the lower the capacitance

and capacitance are usually in microfarads

[levimariah]

as stated before - nice video-informative

[fishcake1235]

(: thank You :)

[tinosnit]

Is there a household item I could use as the dielectric? Glad wrap? I tried making two squares of Al foil with a square of glad wrap separating them but no luck. The voltage across the Al foils would vanish as soon as I removed the AA or 9V battery.

[PhatQ45TT1]

what happens if u take capacitor out of PCB and put it back wrong way???

[fizzicsorg]

It depends what sort of capacitor it is. For some it won't matter, the two plates are the same with a simple layer of insulation between. However in an electrolytic capacitor the layer of insulation is a film of metal salt or oxide formed by chemical action on one of the plates. Reversing the plates will break down this layer and so the capacitor will fail. You can tell if the capacitor is electrolytic if it is marked with a plus and minus on the terminals.

[Mitsimad]

Thanks. What determines the voltage rating on the side of a capacitor?

[fizzicsorg]

The properties of the material used to insulate between the two plates and the thickness of that insulator.

[fizzicsorg]

Generally the thickness and properties of the insulating layer.

[tehinfidel]

Thanks for your great video. It really explains capacitance well.

[HectorUchiha07]

pinche don kulero no sirven sus pinches mamadas si va a hacer las cosas agalas bien wey

[crator007]

Thanks man im 16 years old and ive been interested in physics all my life. You're helping me to learn :).

[danmaxdesign]

Thank you very much, btw your voice is very similar to BBC news reader George Alagaih.

[nerdydev]

it dus dont it! lol

[alexanderscottduff]

great video best ive seen on the topic on youtube, got my exam soon and really helped me understand it better

[mindsoulbody]

very nice

[8320884]

dude if u where one of my teachers i would totally pay attn. to u. 5/5

[rubikscubesolver17]

u helped me get an A on my science test thanks!

[99rhetbaboons]

wut kinda tape is that?

[vigilante76]

The most useful video on youtube about caps... Thanks.

[easymac79]

this cleared up many questions i had. Thank you very much 5/5

[netlethe]

Thanks .. hope you'll join us here ..

[99rhetbaboons]

This would be infinitely nicer video without the 80s break beat music. It's cracking us up too hard and we can't concentrate on the video.

[eddyc27]

nice work- i was investigating how surface area and distance between plates effected the capacitance for my physics coursework, so i know what to look for now!

[edmondublianda]

I need this info for my Power Supply RD job..thanks for your efforts

[superturismo1]

thanks :)

[lunarquests]

i can make a taser with capacitors now xD

[oaktreespirit]

thank u! such a good video.. u are so informative

[WindWalker2291]

Very very good!

[evergreencreativeart]

Thanks much

[prototype9000]

when tesla invented the capacitor he stated it works in a different way than that and he was almost never wrong

[marsCubed]

Two people, Ewald Georg von Kleist and Pieter van Musschenbroek invented the capacitor in 1745, independently. The first capacitors came to be known as layden jars (after the uni of layden). In fact the first unit of capacitance was called the 'jar' equivalent to about 1 mF.

Alessandro Volta (as in volts) 1782, came up with the condenser, which is like our larger modern capacitors. As for telsa, work was on transformers and inductance.

Please expand on his novel ideas regarding this.

[prototype9000]

tesla still has the patent for the capacitor volta made leyden jar banks tesla put everything together in one stackable or rollable unit

[marsCubed]

after some research i have discovered the first aluminum capacitor was discovered, some thirty years after Faraday's work, the SI unit used measuring capacitance was named a farad (F) in his honor. So, as seems pretty obvious, Telsa cannot possibly hold the patent. Farady's work gives us pretty much the modern capacitance definition including variability through plate area and distance of plates also.

[marsCubed]

I think you must be thinking of tesla coil capacitors which aren't the same thing

[prototype9000]

proof that tesla has a patent for the first electrical capacitor electrical condenser June 17, 1896 Electrical Condenser #567,818 219

Nov. 5, 1896 Man. of Electrical Condensers, Coils, &c. #577,671 222 look up those patent numbers and you will see

[marsCubed]

hmm.. i am less convinced of my position now, the dating isn't too far off what i see as possible, however a search of us patents at uspto{dot}gov brings up "Methods and materials for the detection of Staphylococcus aureus" for #577,671 2 - patent number formats must be 7 characters long they say on their page. i am not saying you are wrong, it is only that there is so much hype about tesla these days that i am wary of jumping to conclusions. i will continue looking into this though.

[marsCubed]

btw, if you decide to look into the uspto site, then make sure you select the full database in the drop down list as that goes back to 1790.

[iinj]

thanks for the lesson