Capacitors, DC and AC Current

Capacitors, DC and AC Current

[dcbethesda]

I have been bugged for so long about this until you cleverly demonstrated it here Sir! It's an honor to come across your presentation! I would like to thank you for your time and effort in educating us! Stay healthy so you can still educate us!

[psharath]

After four years and spending 4 lakhs(5000$) for college and youtuber taught me in free internet.
longlive internet.

[paulwheeler]

You're brilliant at explaining basic electronics. Takes me ages to grasp things, but you put the principles across really well. Thank you.

[DK-zyck]

I’ve been searching for hours for proper explanation and i finally found it here. Thanks alot :)

[mohammad]

The best video I have watched about how capacitors work.
Thanks.

[paderp]

I love the pace and simplicity of ur videos! It makes for very effective communication. :D

[Turissss]

Thanks for this video. To add to the knowledge: the capacitor in AC will only get enough charge, related to the frequency of the wave. If the interval in which a semi-wave goes isn't enough to fully charge the capacitor, then you'll have it partially charged. Please, correct me if I'm wrong. If this is correct, then having "big" capacitors working in AC has no meaning at all.

[AllAmericanFiveRadio]

@toyu17
Any capacitor can be charged with a DC current, that is what the diode is for. If you use to much current the capacitor can explode. To charge a high capacity capacitor we used a 60 watt light bulb in series with the diode. It will glow bright at first then get dimmer as the capacitor charges. Be careful with polarity, if you charge it in the wrong direction, the capacitor can explode.

[EdwinFairchild]

so if it blocks dc how do smoothing caps and decoupling caps work? if the cap is already charged up how can it smooth anything out if there is no more room?

[cysrandomthoughts]

Deepest, simplest, and sweetest explanation ever, thank you, but how you explain a coupling capacitor put in series in a circuit, saying it passes AC signal to the other side, thanks again

[romannumeral]

It's not even explained this simply in textbooks. Most of the time they just talk about an AC being able to pass but DC can't. Talk about unlockingbthe mystery of how they get the caramel in a Caramilk bar. My sinceest thanks to you sir!

[AllAmericanFiveRadio]

High impedance means it will not put much of a load on the circuit. Low impedance means it will load down the circuit. The lowest impedance would be 0 ohms. So if you had 10 V and a high impedance load a cross it, it may still read 10 V but very low current. However if you had 0 ohms across 10 V, the volts would read 0 V but there would be very high current.

[vergelbansill]

Great demo, Now a question, I am trying to figure out how to make a Start /Run AC Paper in Oil Capacitor for Air Conditioning and make into a Filter Capacitor, is there anyway to make it polarized? I know that AC Start / Run has Positive and Common, how do i turn that to positive and negative? I need to be able to use the negative and solder it to the AMp chassis....Pls let me know?

Just trying to get old school, have several RCA 2a3 and Hammond Organ amp that came with 6 to 10 MFD oil Capacitors that are polarized. thanx a million....

[jasonvoorhees]

The best video about capacitors i saw until now ! Thank you so much ! I subscribed ! You are a good teacher ! Thank you !!!

[idster]

This video is so crystal clear. I am very thankful. I watch 15 YouTube tutorials to get to one like this. Thank you.

[srivatsaa.r.]

SIR
Watched yr video on CAPACITORS--DC AND AC:
1. LIKED yr video
2. explained well and effective
3. u explain SLOW AND STEADY and hence can be understood clearly by one and all including beginners and students. DONT CHANGE THE PACE AND KEEP IT UP.
4' clear picturisation/video
Thanking you
vatsa INDIA

[AeonFlexMusic]

This is starting to make more sense. Now I can understand how a capacitor stores a voltage value/charge. Since V = Ed, where E is electric field strength and d is distance, once the electrons are saturated on one side of the conductive plate the comparative "lack" of electrons on the opposing plate help create the electric field ie charge value. Please correct me if this is not true

[AllAmericanFiveRadio]

@78recordrepair
The voltage is almost constant from the batteries, but the current stops when the cap is charged. With AC both the current and voltage alternate. If you have lots of voltage and little current you don't have much power, add current and you do.

[LookingAtSteak]

Excellent explanation! I've always been confused when I look at schematics and see capacitors connected in series with an AC source. This really helps to clear things up a little! Thank you for sharing!

[apyogapaartiban]

Excellent. This is the correct explanation. Capacitor won't allow current otherwise electrons to pass through even in AC. Even most of our electrical engineers get it wrong.