This 8 min video is worth more that 3 years of my dumb school... Teachers never bothered to explain those things, they just use A, V, Ohms like it's obvious, and nobody gets it...

@carolynw7817

6 жыл бұрын

Same here, it cost me $$,$$$ to learn a bunch of acronyms without any explanation at all.

@Magicwithizz

6 жыл бұрын

honestly. my teacher was like uh... yea so this is ohm because it is so whats the charge oh i mean current? and everyone was like ??? what dude?? Bless this channel

@umamaheshneelapala5559

6 жыл бұрын

www.circuits99.com

@ashutoshsamantaray2572

6 жыл бұрын

Yeah thats the critical view of most students and most of is truth coz most teachers are a bunch greedy lazy no bodies who use there title to pressurize and then there are teachers like mentors who actually care abt their students and help them

@ajflowz5009

4 жыл бұрын

Thor Odinson I lol’ed 😂😂

so who has a test tomorrow?😅

@ItsPumpkin_Boy

Ай бұрын

Me

This guy is good I’m telling you. Even if you literally are not interested in that particular subject but when this guy is explaining you enjoy and understand the subject. That’s what I call it a Good teacher 😄

PLEASE COME TO MY SCHOOL AND BE MY TEACHER. Ive learnt more from this 9 min video then my hours of science, Thank you. I can take my science test with ease

@craig__07

Жыл бұрын

How much did you get on that test??

@EM-oj9zj

Жыл бұрын

@@craig__07 mf died

this is like the thing that they failed to explain in school which led me to struggle with this subject for the past 3 years. they literally didn't set the foundation. how can you expect to build knowledge on an unstable foundation? you can't. thank you khan academy, you are doing god's work

This Minecraft red stone update is really confusing and overly complicated

@robertkeathley7743

5 жыл бұрын

GASTRO GAMING this hilarious

@peteriam5199

5 жыл бұрын

yeah i think its 1.8.2

@xsbzzzz

3 жыл бұрын

😂😂😂

@hey9530

3 жыл бұрын

I don't understand.

@TonTonTheWonton

2 жыл бұрын

lmfao

hour of reading text books = i kinda get it 10 min video = i totally get this

I love khan Academy!

@sonamgupta2142

3 жыл бұрын

Me too

Hey Khan Academy i can’t thank you enough for all these great physics videos. They have helped me out so much and have made principles of physics much more simpler and easier to understand than what highschool taught me throughout the years. Keep them up!

Wow. This whole time I've been messing with microcontrollers I believed that the flow of electrons was from the (+) terminal to the (-) terminal. What a misconception! Thank you Sal!

@ddstar

4 жыл бұрын

That's not what happens. Electricity is on the outside of the wire. it's the intersection of electricity and magnetism. Electrons dont exist.

@JustBronzeThingsLoL

4 жыл бұрын

@@ddstar good joke mate

The legend strikes again!I finally understood this after 10 days

Franklin has a 50% chance of getting current right and he messed it all up!

@hageraliart

3 жыл бұрын

So annoying fact

Very useful

You are literally the best teacher in the world. I've watched so many videos and yours is the only one that is simple, clear, concise, and actually makes sense. Thank You so much!

I cant even express how helpful ur videos hv been for me in learning science especially physics. Lv u SAL KHAN!!!!!!!!

Man, I wish people would learn basic Newtonian physics before trying to use them to explain stuff like this. This video helped me sort out like 3 or 4 bad descriptions of how current works that people explained using backwards ideas of how water would flow or blocks would fall.... Thank you Khan Academy.

This is a life saver, my teacher doesn't explain any of this and then gets mad we the class doesn't do well.

Excellent...cleared all my doubt...nice job sal

Great explanation!

As always, perfect ☺

I love Khan Academy. Thanks for this great video, exactly what I needed.

This video worth a billion views!

You're a good teacher ! Love from Indian students!!!

Very quality explanation. Will this series eventually get to how electromagnetic radiation is produced by the the change in electric and magnetic fields?

Mind. Blown.

Eventhough I knew this topic, I would listen to thus juz for you sir! Thank you for making me love physics! ❤😊

I'm learning about electricity in 2 classes. a tradesman class (HVAC, plumbing and electrician) and the second year of auto tech. in the auto class, we've spent more than a whole semester "learning" about electricity. literally nothing about cars. I'm taking a single semester of the tradesman class this semester, and we just started covering electricity. In that one day, I've learned more about electricity than the whole semester of "auto tech". This video is rad.

@bohemianbookworm9361

Жыл бұрын

Traditional school after high school is generally legal racketeering. Pay to get your time aster unless you’re going for STEM. And even then, you have to use good judgment to not get swindled

I love your videos. really great. any chance of getting 1080p or 4k video?

the calm monotone voice and the knowledge with which he speaks and explains is the best!!

Thanks

Thanks you so much, this video helped me alot i swear

(I) is for current because it stands for inductance not necessarily because (C) was not available.

@robertschumann6977

4 жыл бұрын

Zepherius Cole 😂 L stands for industance, not I

@jamie7472

4 жыл бұрын

Isn't C the speed of light?

thank u verrrrrrrrrrrrry much my exam is month u've really healped me a lot

Great explanation. I really like this video and it teaches me more than all of my years at school

Think about electricity as water; and power lines as pipes. Voltage is = water pressure. Current is = water flow speed. Resistance is = pipe resistance.

awesome explanation,totally worth it

nothing 2 say...in 1 word...awesome

Okay this is my topic for science. And I understand it now

This video is helping very much to me in these corona condition

Thanks a ton for this video I was going crazy for my grade 9th kid... from Canada.

Solved my problems very easily through this academy☺☺☺☺loved it

Crazy I never knew it could be so easy thank you!!

Wow I literally perfectly understand this concept in less than 10 min.

test is tomorrow, thank you for this.

Just 5 minutes into the video and I've understood more about electricity better than ever.

Nice

thxs so much

Excellent information.

Hi, I was doing a paper and one of the questions had two batteries in parallel and one in series with those two, how would I find the total voltage if they all supply the same voltage?

This was very helpful, thank you so much

Why does the flow rate decrease in the example here (4:22) but in fluids problems the flow rate stays the same but the velocity increases? Edit: if current is analogous to flow rate, and resistors only increase the velocity (the flow rate stays the same), what is the point of using resistors/narrower or wider pipes?

@gamerevolution173

5 жыл бұрын

Resistors don't impede the flow rate, what resistors do is that they convert some of that electrical energy into other forms of energy such as light, heat, etc. This means that some of the charge is lost and thus less charge proceeds. In light bulbs, the light that we see is actually a tungsten wire being constantly supplied with electric charge. As tungsten has a high resistivity (the inherent resistance a substance has), a lot of that charge is converted into light and heat energy giving us light.

@aunmaqsood8227

5 жыл бұрын

@@gamerevolution173 nice explanation. Thanks for clearing it up

We need more vdo like this

Love this

Even after the analogy, I'm still confused about voltage. It was really confusing with the whole potential energy and whatnot. :\ It's still a good video, it's just that one thing that I need some additional help with. Just the concept of a volt.

This was excellent

Kahn Academy save me from going insane in jail. I watched hours of it. This is some of the most comprehensible presentations of this knowledge that ive ever found.

TYSM! THIS HELPED SO MUCH !

This is helpful for academic school and i am one of this Thanks 😊

Amazing

I know this will sound like a dumb question, but with the bottleneck analogy, i cannot help but think that it is the normal reaction of the pipe wall to the container which is contributing to the prevention of flow. How would this "normal reaction" apply to the circuit case? Also, how would we tie in I=navq to this analogy? Disclaimer: I haven't watched all the videos yet.

@robertkeathley7743

5 жыл бұрын

Nickoh667 Historicalnik667 he said it wasn’t a perfect analogy. it’s a basic analogy used to understand these basic concepts.

Thank you, Knan Academy. Good review of the basics. I didn't know Franklin instituted flow direction. Facts should change conventions.

Best teacher of khan academy 😊👍

Sal khan deserves everything Good in the world for making education a privilege.

Best Teaching ever seen

Thanks man

I've always called current intensity because it starts with an I

Sal is probably the smartest person alive

Good video.

thanks for the video bro

amazing video just did two weeks of class lecture in 8 minutes

Thanks for sharing Sir.

I love they way you teach.... I hope if there was a lot of teachers like you....! 💐🙏

@eaglegaming3399

2 жыл бұрын

Even me

@eaglegaming3399

2 жыл бұрын

BTW do you Instagram

Hi, I am trying the record videos about circuits. Please advise how to write this neatly on the screen and draw clear circuits. thanks

Please upload npn and pnp transistor...

who's this teacher, whoever you are, i just wanna say that you are a gift from the heavens, i hope you have a happy and peaceful life

Nice video👍

Just in time for my electricity and magnetism course! more please :)

@seyitanajetunmobi727

5 жыл бұрын

keep on watching nd surscribe

thank you khan academy.... for teaching me]

Please explain about microprocessors

Great video!!!

Thank you always

please if you can give to me the name of program you used it in explain the information

Why would u want to use a resistor to slow it down?

Ka is very useful to me

Thanks Khan Academy !!!!!!

Sal Khan learn in MIT so he is very knowledgeable

@tejasdeepsingh456

4 жыл бұрын

Sure he's good but the reason doesn't has to be MIT. Take RaGa for example, if you're an Indian, you know what I am talking about.

Thank you sr

selection is tomorrow........ Thnqeww very much for this!!!!!!!!! awssm❤ video sal

@Muskantt01

5 жыл бұрын

Results?

When will be this on khanacademy.org

College, and somehow my professor got the idea we all have previous knowledge of circuits after a week of starting the semester. When very few of us even know what a resistor is.

You are the best prof

Khan is a genius ❤️

I followed this video up until the point of calculating the current. I understand that the resistance bottlenecks the voltage down to 2A because of Ohms law but what I don’t understand is that the resistance doesn’t occur until halfway around the circuit so why is the Amperage in the northern part of the circuit still 2 even though it hasn’t been impeded yet?

THK U SOOOOO MUCH

Beautiful sal!! Kirchoffs law next! What is more dangerous 1A or 1kV

@cannyas-you7862

3 жыл бұрын

1kv

What does (Coulomb) At 5:45 when you say the potential energy per coulomb, do you mean that each electron is a coulomb and each electron has 16 volts? Or do the electrons collectively have 16 volts?

Where were you when I was in technical training in the Navy almost 4 years ago???

Yay

How many resistivity circuit we can make with n resistence?

Bruh! How the heck can yiu guys teach so well??!!