How Capacitors Work - The Learning Circuit
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- เผยแพร่เมื่อ 29 พ.ค. 2024
- Karen gets into the nitty gritty of how capacitors, explaining how the metal plates a dielectric manipulate electric charge to store energy. Learn about what materials are used to make capacitors, how to read their values, and what happens when they are put in series or parallel. Connect with Karen on element14: bit.ly/2zvcxDq
Visit The Learning Circuit: bit.ly/2QoyOKj
Visit element14 presents: bit.ly/2SNYpOq - วิทยาศาสตร์และเทคโนโลยี
please don't ever stop making these
You are the first person to make capacitors make sense to me thank you so much
@5:46, the µ and the n switched places!
You’re a great teacher! I really enjoy your videos! I’m working on my General amateur radio license and these videos really help supplement my learning. Thanks!
Simple, yet concise.
Great explanation, thx
There is a mistake in this video at 5:48 . 22,000 μF is 22 mF. You may want to write it as 22,000 nF is 22 μF. Hope this helps.
These videos are awesome! Thank u for doing a great job and keeping it interesting!
You make a very professional production in addition to your knowledge of electronics. Ty.
not only understanding but also I love you so much🇹🇿🇹🇿🇹🇿🇹🇿🇹🇿🇹🇿🇹🇿
Thanks Karen! Good explanations.
This is very interesting! thank you for your presentation.
Very good series .. keep making these videos .. 😊
My course refreshing many thanks
This video was great, but really only touched on the DC properties of caps. Would be awesome to see a video on the AC properties, as well as videos on inductors(if you haven't already done one.) and tuned circuits. Keep up the great work!
Since I haven't gone over AC at all, I've been focusing mostly on DC properties until I do. I plan to cover AC in the near future so I can expand further into topics.
Maker_Karen awesome! I look forward to all of those videos. You are great at explaining this stuff.
@@WI9LL Thanks!
Thanks, Karen!
It would be awesome if you guys could go over all the tools in electricity. Capacitors is a great start/example.
Moga Allah sentiasa merahmati puan dan keluarga.
Good explanation, I have a question to the community. What does happen with the voltage when capacitors are in series or in parallel?
When in parallel does the voltage or the farads increase?
Capacitance (farads)
Amazing
Vielen Dank 💥⚡
What about building a duel MW/LW radio around a Tayloe Mixer with output frequency of 455KC driving a phasing combiner driving a Motorola AM demodulator chip and power amp to drive a speaker
egads... in your discharging schematic you have the switch after the light so when it is turned on c the power just goes back to the battery right? since the diode has no ground it can not light.. or am I just stupid? some of this stuff make me feel like a 3rd grader even though I am 66...
Karen you're great lady so sweet . ..I like your channel. ..👍
I love those video's, but i keep watching them and missing the practical information of when to use certain components, what is the application of them,... I mean, for example I once had a capacitor in my monitor that died and my monitor wouldn't stay on, how can i know that it was by the capacitor? (someone in a hardware store told me as I didn't know where to look)
I really like the information presented in this video, but whoever is shooting the macro needs to either stop panning or you guys need to figure out the stabilizing tools in after effects. That wiggle is really hard to watch full screen.
I hope this didn't come off too rude, I love the work you guys do even when little things bug me it's still great to have these videos!
When you showed discharging the capacitor, you should have charged it to enough voltage to make a visible spark.
Cool 😎 so actually having a large farad capacitor rather then a extra battery in car audio would be better for amplifiers?🤔 🤙
❤
I don't understand. If there is an insulator between the two contacts, then there is no circuit. If there is no circuit, how can either terminal gain or lose electrons to the relevant +/- of the power supply? Surely there is no contact for the current to flow between.
What am I missing?
im no expert but i believe its the magnetic field that holds the charge. which is what the dielectric/insulating layer is for, close enough for the magnetic field to interact without causing a short.
So, think of it as a screen door, and electrons are leaves in the wind. The wind can get through the screen door, but the leaves cannot. So, the dielectric allows for "suction" to build up. Bridging the capacitor is effectively opening the screen door and letting the leaves in ...
Even though they're not contacting each other and are separated by a dielectric, there is an electric field between the two plates which causes charge transfer.
See Dave Jones on EEVBlog for some in-depth look at current flow through a capacitor: th-cam.com/video/ppWBwZS4e7A/w-d-xo.html
@@BrandonFreemanAwesome Cheers.
Would describing them as volatile battery be more accurate to describe them?
No, think of it as extremely fast rather than volatile. I like to think of it like this, a battery is like pouring out a cup of water slowly and a capacitor is like dumping out the cup of water all at once. Hope that helps you visualize it better, i am still learning myself but videos like these sure do help.
If a capacitor can discharge quickly at a high voltage, could it be used to jump start a car battery?
Um I dont think so
When you jumpstart a car, your really just providing a large current to the starter motor. You could defintly do that with a capacitor, but you would need a super big one. Fortunately there are capacitors called 'super-caps' that can do this easily.
Caps discharge over time when not connected to a power source, they could only give power to the battery just as much as they can hold meaning you would need a very large cap to do so. Also I dont believe the sudden discharge from the cap to the battery would be good for the battery as it cant handle the amperage in the given time (battery chargers for cars typically run at 2 amps for a slow charge, and around 8 amps to start the car).
Yes indeed with big enough caps you can start a car. there are plenty of videos on youtube about this
Tantalum polarity is indicated by a bar at its positive lead.
Yay! Lets get charged up with Karen.
What if the plates are not equal how will you calculate it
It can be calculated by considering the overlapping area of the plates. This is the basis of tunable air cored capacitors in radio circuits. By turning a knob, the user can rotate one set of capacitor plates (rotor) against a set of fixed plates (stator). The overlapping area between rotor and stator determines the capacitance. Because the overlapping area is variable, so is the capacitance. For a clearer explanation, look up 'Variable Capacitor' on Wikipedia.
Capacitors would be great for a burst acceleration mode in an electric vehicle.
there is such a system called E-nos for RC cars.
I mean, you work with much larger F when making a Tesla Coil, which is a fun project.😉
anyone else have to watch this for school?
Well, I mean, what are they are?
Tazer
I'm sure these things are in the stun-guns cops use lol.
Yes they are.
Yes, but how does one store flux energy?
You need a Flux Capacitor for that Silly-Billy. :)
So Sweeet vedio. ..i don't have any cap
I don't get it.
you speak fast !!
Too much vocal fry.