What are inductors? (self-inductance) | Electromagnetic induction | Khan Academy
ฝัง
- เผยแพร่เมื่อ 14 เม.ย. 2021
- Self-inductance is the tendency of a coil to resist changes in current in itself. Whenever current changes through a coil, they induce an EMF which is proportional to the rate of change of current, through the coil.
Khan Academy is a nonprofit organization with the mission of providing 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
No teacher explain like you in India they just focus on formulas hats off to you sir
Yes very true they only know how to do problems
Why u take off ur hat
Harsh truth
Your teacher *
He's the best!!
I've been in Electronics for 20+ years, and this is by far the best explanation about inductors I've seen, great job !
I love the way you teach, it's like hearing a story😍
First!
😂
😂😂
🤣 last!!
You are something special
MR. Mahesh
Hats off
he is funny 😂 I'm giggling while learning
fr
Indian tutorials are leading in TH-cam. I even find tutorials that are rarely made by other nations.👏🏽👏🏽
Ikr, I'm studying Galois theory for my physics program and no matter how niche the topic I'm looking up there's an Indian channel with an explanation, it's amazing
Wow, I read this in the book like ten times over and over trying to fully understand it. I listen to you explain it once and I get fully. Thank you!
Moral of the story :
Final Battle : - Inductance says -- I HATE changes in the current..!!! 😝 Good one sir.
Super useful. Couldn't understand what on earth an inductor was and we have already gone past AC circuits and LCR combinations. But now it all makes much more sense.
Hi mister Shenoy! I just want to say that you reaaaaaaaally helpt me a lot! I'm studying Biology at the university in Belgium right now and Physics was always my most difficult subject. BUT NOW I FINALLY GET IT! I love you man, I really do! ❤️
+1
+2
+3
+4
+5
The reason for why I love physics is because your way of teaching is incredible........you make the topics alive and everything gets crystal clear
i swear i literally smiled so much after this lecture, it just made inductors so easy oh my god. i really enjoyed this video, i love this method of teaching, plus the language was so clear and friendly voice, it actually felt like i was just hearing a story
wow.
this gotta be one of the best explanations for the inductions
Allow me to ask, why is the current in the circuit changing over time? I thought this is series circuit in which current is constant?
@@marq6325 the current wants to go from zero to some max value. In a simple resistor circuit it happens almost instantaneously but when an inductor is introduced it forces the battery to increase the current slowly in some equilibrium condition. Once the current reaches its maximum value then the circuit behaves like a normal resistive circuit except that the inductor stores some energy in magnetic field.
*_Summary Of The Video :-_*
*Inductors and Self Inductance*
* When we connect a bulb to an inductive circuit using a DC supply , we notice that bulb takes some time to glow in its maximum brightness.
* Inductors do not have any problem with current.
Inductors have problem with *_change in current_.*
* Whenever there is change in current across an inductor , it induces an *EMF* to oppose that change in current.
* The ability of an Inductor to oppose the changing current by inducing an EMF is often called *INDUCTANCE* (Self Inductance)
* If changing current and opposition both are happening in the same coil then it is called *SELF INDUCTANCE*
* Inductance is like *Inertia* .
* Unit Of Inductance - *Henry*
* When we turn off the switch we see a *Spark* because of incredibly high voltage supplied by inductor due to decreasing current.
* It is dangerous to turn off switch of an inductive circuit because we might get a heavy shock.
Deep respect for you. Your explanation was detailed and yes we won't forget that the Inductor has no issues with the current just the change In current
God bless you so much, the best way to learning is by using stories, you’re a great teacher. Thank you sir😊
Wow. It’s been a long time since I’ve seen an educational video done so damn well. Huuuuge thanks.
Incredible sir !! It was a great experience to attend your lecture.
This sir, is what we call "perfection"
Thanks a lot.. I was starting to get hopeless and then, thanks God, I found this video :)
U always got my back ! I love physics because of u ,keep hustling teaching is really ur thing .Thank u, much love and respect !!
These videos have left a huge impact on our youth in the way that we learn things,
Hat's off to Khan Academy especially Mahesh Sir
Wow, really enjoy it. You explain awesome! Now I understand it. Thanks!!
Please upload all these before our board exam commence 😭
I am also waiting for the same
Thousands of videos on Internet
But you are our gem and resonating factor ❤️
I don't know how to thank you. Loved your work. Wish you live long to teach us many more
that is by far one of the BEST Videos I've seen on TH-cam in regards to Inductance!! Thank you!! Great Example and Explanation from Beginning to End!! You're the best!! I look forward to checking out your other videos... I'm a NEW Subscriber!!
Wow, this explanation was awesome!
excellent and awesome explanation. god bless you sir.
thank you so much sir I was reviewing EM theory and this is worth a thousand hours of search
They is something special about Indian tutors, more love from Africa, thank you sir
what i had studied in my school days , inductors are short circuit for DC , but now i understood that i was told only about the climax and not the complete movie..thanks tutor for the animation and your amazing explanation...!!!!simply WOW
So much clarity about the subject. I bow down to u sir🙏🙇🙇
I am in love with your explanation..... Real addiction... keep uploading all topics ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
really nice explanation!
Love your explanation.....you explain every concept excellently ❣️
Excellent explaination. You must have a deep understanding of the material. Thank you for your video.
Absolutely brilliant explanation of the subject.
You're good at teaching students high school and college level. Keep it up. 👍
This is a FANTASTIC explanation. Thank you so much! (On a side note, however, if the switch is opened, wouldn't the bulb explode first, instead of the us getting the spark? I may be getting picky)
Litterally found one gem today....thank you
Highly appreciated, very clear explanation, thank you.
This is actual learning of physics as there's no focus on just mugging the formulas but it is actual concept
i always find it fun, when teachers explain pure science by saying "the coil hates the change in current" or f.ex. "the electrons WANT to have 8 electrons on the outer shell". ofc its easier to understand it like that but for people who are driven by pure facts and rationality its controversive when they explain it like that and its fun
Best way this could ever be explained thank you
It’s awesome Sir . It’s totally helpful ❤
The lecture was incredible. Tysm!!!!
awesome explanation 👌
It is the voice, affected accent and drama that kill it especially after you heard Salman's rich, smooth and resonating voice.
Thanks to this great explanation, I am now totally clear with self-inductance😁
the best explanation on the internet
Good job.. all clear 👍
This is by far; amazing!
I swear u made it easy thank you bro
Dude I've witnessed so many teachers and khan academy teachers even, no on is better than this guy
Excellent explanation.
Best video on inductors yet!
Love it !
thank you , I study from Iraq , 6th
طالبة في السادس الاعدادي 2023 🌾💚
I finally understand everything. Thank you sir
Great explanation tnx
This is such an amazing video!!!
you made it soooo interesting may God bless you
Super lecture is understatement 😁
Teachings are amazing. What makes him to teach so interestingly.
very educative. thank you regards
Explanations are great!!!
Wonderful explanation 🔥❤ Jazakallah
How an indian explain things , straight to the gist, simply and logically. I think India must be an intellectual superpower.
I like indian people.
Awesome lecture, thanks sir
couldn't be explained better. thank you so much sir
That was a story,❣️
I realy appreciate this guy he explain everything ❤❤❤
Great sir thanks
its really amazing
Super mahesh sir
Great video .
Actually very great
At least after years, I think I understand now. Great job
You are awesome sir.
Thank you so much for being there 🥰🥰
Fantastic video.Text books
have not dealt with these much information.
Sir can I know from which planet you are because in my entire life I never seen so wonderful explanation I just rote learn things 🥺
You are life saver
Awesome
thanks for english translation
Hats off 🙏👏🎊❤️Excellent teaching skills.. Thank you so much
great explanation!!!!!
I live on the edge!
im suprised that your topic are same as topics taught in my country
Excellent
it was really amazing explain
Just wow no words
Does load on electromagnet affect the current it's consuming?
Literally amazing
HOLY CRAP! THIS GUY IS INSANE!
Thank you🙏
The world's best teacher thanks
Wow awesome ❤
Best explanation
From where you get this type of picture or animation
And in which software you make videos
God level teacher
Your tutors are the best
Most helpful video