Live wire, neutral & ground (earth wire) - Domestic circuits (part 1) | Physics | Khan Academy
ฝัง
- เผยแพร่เมื่อ 2 ส.ค. 2024
- The live wire of domestic circuits is usually red and is at high voltage. The neutral wire is black and has voltage close to that of the ground. The potential difference between these two wires in India is about 220 V. The earth or ground wire provides safety against faults and current leaks. Earth pin is longer to ensure earth connection happens first while connecting and last while disconnecting any devices.
More free lessons & practice www.khanacademy.org/science/i...
Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Donate here: www.khanacademy.org/donate?ut...
Created by Mahesh Shenoy
![NONT TANONT - ดอกไม้ที่รอฝน (spring) - Reimagined [Live Session]](http://i.ytimg.com/vi/nY2PsFZFEOg/mqdefault.jpg)
I thought I hated physics but honestly I guess I just hate how they teach this in school and how we have to just "memorize" the answers only. Your video was so good and well made. Honestly helped me out big time, not just academically but to finally relate physics with daily life. Physics is so important, it sucks the way its taught, I never had this much fun studying physics ever. Thanks you so much! Keep doing it, you'll be helping so many people in the future!
I'm 50, and I finally understand this better now. I had a misconception about AC and the neutral wire. I think many of us do after learning DC circuits. You are a very good teacher. Ty.
This series is so underrated people would rather watch someone who's from an IIT than someone who's actually good at explaining stuff
@Westin Killian bots
Hii , I'm a Scientist of ISRO
Exactly teaching is a different skill A teacher doesn't necessarily have to be a topper and a topper doesn't necessarily have to be a teacher
@@Sceince_Vedas_are_the_Universe Yes and I am Goddess Saraswati.
@@charu2059 lmao
wow. I have heard and read so many explanations, but yours is just wow. I understood everything at once. Thank you soooo much.
This was so great. I had difficulty in understanding this part, so our school teacher gave us this video, and now it is crystal clear to me in one go. Thank you sir
Not trying to stereotype, but why are Indian people so good at explaining things in a straightforward way.
Khan Academy is truly soooo underrated!!! Thank you for saving my life during my exams!!!!!!!!!!
thank you so much! i love how you explain concepts with simplistic examples to real life because it really stays with me and makes it so much easier to understand. keep it up! :D
Fr!
As said no cat was harmed in making of this concept 🤣🤣🤣🤣🤣
funny
Chup be , gyaan mat pel.
@@gouravkale4908 hAt be kale
@@satyabratadutta417 ab terko kya hua bhai , kya ho gaya , merko kyu bol raha hai ?
😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂🙂🙂😂
I must say, this is the best explanation. I hardly comment on videos, but this is just wow👏. That football thing was veryyy good👍. Thanks from the other side of border🇵🇰.
Your voice, your confidence, your way of teaching, it is full of enthusiasm without any doubts. Amazing, fabulous, and yes, Thank YOU
Sir! I can't tell how much I appreciate this video, I had a confusion from a long time about 3-4 months ago that had been disturbing me and there wasn't a better explanation in the world, just the first part of this video made me so happy. If I had been old and responsible enough to donate, you would have been one of the receivers. I feel obliged. "Feels illegal to not pay for this luxury level education". Thank you.
Class 10 AAJAO COMMENT PADNE
😂🤣
What's padne 😂
Thankyou Sir Mahesh for putting much effort in these videos. Hoping for more electronics-related playlists in the future! :)
Thanks for the help! I picked up what I was lacking in understanding about this type of current! Explaining how too but then elaborating on the why is awesome!
My god , i have done masters in physics , everytime teachers explained this stuff i would get nothing , today i have understood this and can explain to others .......👍 thank you man ....
Thank you khan academy for saving my cat 🫡. But this was very good explanation about different wires.
love how you explain concepts with simplistic examples to real life. Especially the football one...
I'm someone with zero knowledge about this stuff. Last week, my friend explained this to me, and now I finally learnt it using this video as a reference 😅😅😅
This is the best video I have found in TH-cam that explains the three different wires. Thank you very much!!! for the amazing explanation.
Great explanation. The demonstration, the example, the case taken, everything was on point. Thank you.
It was everything I needed to know. Curiosity quenched just like that!
thanks man , I was struggling to understand what is a neutral wire . I mean if the current alternates , both the wires should be the same right ? . the football explanation was outstanding
The cat wouldn't forget that shock !!
After all such a good explanation..
Great video! It was good that you explained the effects of voltage differentials to determine the current flow direction and hence how the direction changes, without needing to use technical terms.
Respect🙌 for the Cat🐱...
Bcoz of the Cat i have understood 😉 the entire Concept.....
Tq Sir🙏😇
This is such an elaborate yet simplified explanation. Really great! Thank you!!
Thank you so so so much, sir. I've watched many videos about understanding the electricity for beginners and I can say they are really good at it in terms of their approach or formulas, but still I was so confused some terms or understanding them. You are now very helpful to me about this issue by explaining and depicting these stuffs magnificiently. So again I am thankful to you, sir.
That was the best explanation ever
It was a "nasty bad day" for the cat. We had to shock her so many times... 😄 Excellent explanation. 👍👍
I kind of remmember this voice when I was taking byjus trail classes😬
The best video on this content I've ever seen.
i am in 12th finaly found what I've been looking for years...noone told that live wire changes its potential...now i got how is it ac in home❤️❤️
Watched many many videos explaining this and you did the best! So thorough!
Thank you so much! It's pretty confusing online when u read tje ground wire is connected to the ground and the metallic appliances but get no context. This is awesome!
Super sir... Finally understood after so many years... Clear concept explanations must be given like this sir.. This is lacking in Indian education of memorising..
Thank you so much, sir.
I've had problems with this topic and I could've never asked for a better explanation
Today I clearly understand live, neutral and earth wire, u r explaining in much better way. God bless you
Thank- you. I had this doubt for a very long time, but through your animation it was very easy to understand.
Wow dude, your explanations with simple real life examples and analogies are so easy to understand. Thanks for clearing my concepts!! U r a hero!!
this video makes this topic very intriguing and easy ..👍🏽👍🏽👍🏽
Easily the best video Ive found yet explaining how earthing works.....
You answered all the questions I wanted to know for looooong time thank you ✌
WTF dude I would pay to watch this. So simple yet so practical. I finally understood what is the significance of live , ground and neutral wire in our plug points and also why it is connected
The ground wire pin is thick because resistance is inversely proportional to the thickness of the conductor, so current will flow through this earth wire instead of metallic body of any appliances :)
Man, this is why my Mac has been giving me a shock too every time it's on charge. Very interesting and very well explained!
This was really amazing. You have given us a clear explanation on this.
wowwww... excellent explanation!! highly underrated (as of 2020)
Thank you sir your contributions can not be forgotten🥰
good explanation ....but a minor correction.... in a socket right side pin would be hot and left neutral....
25 years of education failed to teach me this. I could have opted for Physics had the teachers been less skewed. Anyways, thanks for this beautiful video.
what an amazing, superb, fantastic,excellent,mind blowing explaination. i really loved it and thank u so much. i had to explain about the three wires in my school activity and after watching this i gave an superb and dense info about the three wires. thx to u
Thanks for making it super easy to understand. Superb!
Thank you!
one of the best explanations out there
You have provided an excellent and simple explanation of mains wiring. Thank you!
the best video.....loved it ..i don't write comments but this was just mindblowing .....thanks from bottom of my heart..
this is such a good explanation. Thank you!
Beautiful, thank you sir!!!!
I've never fallen in love with a Physics video. And now I have after watching this one.
explained so simple words. thanks a lot
Thank-you so much for your clear explanation. You are a very good teacher, even making the suggestion that we go and explain this now to someone else as this is itself a recognised means of effective learning. Thank-you again.
Wow man , you are the best. I would love to know where does the current on the ground go to ,should it not go back to the hot wire...
This is amazing! Thank you!
Great explanation. Will stay with me forever. Keep it up!
This is the best explanation I have ever heard in my life.
All of the videos are so good. Thankyou!
splendid explanation sir...respect for u
Explained in a best way thank you ❤️
no words to describe how good and informative this video actually is...ty sir🙏
i think the ground pin is made thicker also because more surface area = less resistance
why?
Very good and cleared explanation...,well done..!
Thanks for uploading this video,It realy helped a lot to me to understand this concept.Nice Explanation.
Very very well done, thank you!
Soooooo clear and catchy explanation.......Thank you a hundred times
By far the best explanation video I’ve ever watched. Although I’m living in NA.
Thank u so much for this information
Really your channel is best and you are a great concept clearer
The question is how you keep the neutral voltage same as ground.
Actually the green earthing wire in plug socket would go back to the panel and connect on
the neutral bus if main panel has its main disconnect there as well. or if it is a sub-panel,
neutral and grounds will not and MUST NOT connect. this way if a fault occurs, current
flows on the green or bare wire back to the ground or neutral bus and trips the breaker/s.
hooking neutrals and grounds together in a sub-panel can make many metal parts
electrically live and ppl not suspecting could get a bad to severe or fatal shock which
would be 'electrocuted'
Excellent explanation.
If a got any doubts, you clear them even before start to think.
I never liked any physics video. The first time I put a like for a physics video.
❤❤❤❤
OMG! Simply one word! Amazing 🙏🙏
Beautiful explanation and superb use of language 👌
Thankyou sir you cleared all my doubts 🙏🙏🙏
Wow, what a video! Thanks s lot for explaining live, neutral, ground wire. And the poor kitty !
Wow concept made clear ,loved it👍👍👍👍
One of the best explaination i have experienced...
Thank you so very much for this Video. I am clear with the concept now.
Thank you very much ♥️..this vdo made the concept super easy..♥️
never commented on any videos until now... worth the watch!!
Perfect explaination man. Appreciated
Great video, very clear explanation
Thank you so much.. I'm pretty satisfied with your explanation 🙏🏼
Brilliant explanation as a teacher I really appreciate your affords
Amazing explanation 😄😄 thank u very much sir 👏
simple explanation..thank you 👍
Amazed me!!!😺💚
wonderfully explained,Thank You Sir,
Great way of explaination I have ever seen...thanku....
This is such a great explanation meeaaaaann!!! ❤
I really like your explanation bro🎉🎉
Great sir! Thank you.
The ground pin is longer for another reason too, it opens the live and neutral sockets. If you look at the neutral socket in your picture, you can see it's white on the inside. To stop children sticking things in it.
Good safety feature on some country's plug sockets (not all). More or less universal in the UK