"Be the teacher you wished you had when you were a student"...i literally get this vibe frm u sir...n u r absolutely doing that sir..Thank you!!!

i love your voice and your lectures ...they are so interesting and i never get bored of your educational videos...in my college the only main focus is to derive an equation for such topics and solve numericals but having zero concepts about what is actually happening

@techniker8745

2 жыл бұрын

i can't agree more :D :D This guy is saving my exams right now

@showshowtomakefreeenergyge2426

Жыл бұрын

There is a lot of talk about free energy and how to create it, but there is very little information available on how to do it at the undergraduate level. BACK EMF is one of the ways that free energy can be created, but it is not available at the undergraduate level. This is because it is not taught in school. There are a few schools that offer courses on free energy, but they are mostly at the graduate level. There are also a few online courses, but they are mostly expensive and not worth the money. The bottom line is that if you want to learn how to create free energy, you will have to do it on your own. There are a few books that you can read that will give you some information on how to do it, but they are mostly written for people who already know a lot about electricity.

@nevaehjol9319

Жыл бұрын

blink let's go 🤟🖤💗

@sriramnainala551

Жыл бұрын

Hlo

All that I can say " you have a real teacher in you "

This video made the most sense to me, thank you so much ♥️😭

I literally watched khan academy vids for learning electromagnetic induction, now i feel confident thank u teachers

I cant thank you enough. The videos are straight to the point . EMAZING

Really informative and was very helpful in clearing the concept. Thank you.

Very amazing, I haven't ever found a lecture like this on AC Generator & Flux. ❤❤

This video is GOLD. ⭐🙌🙌🙌🙌

EXPLAINED LIKE A PRO! TYSM! BEST VIDEO SO FAR

I am mesmerized to find such a great teacher on internet.

Thanks a lot sir kabhi nai smjh aya or ap ky lecture sy kafi faida howa.

Back EMF is a powerful force that can be harnessed to generate electricity. When a conductor is moved through a magnetic field, an electromotive force (EMF) is induced in the conductor. This EMF can be used to generate electricity. The strength of the EMF depends on the speed at which the conductor is moved and the strength of the magnetic field. The faster the conductor is moved, or the stronger the magnetic field, the greater the EMF. The direction of the EMF also depends on the direction of motion of the conductor and the orientation of the magnetic field. If both are moving in the same direction, then the EMF will be in opposing directions and will cancel out. However, if they are moving in opposite directions, then they will reinforce each other and produce a stronger EMF.

Found your channel at the right time 😭🤌tqqqqsm

I like the explanation on flux change and the vibe...thanks a lot

this video makes me easy to understand, thanks sir

Thank you vert much sir for making complex things simpler

Thanks ever so much, Khan Academy! Everything miraculously begins to become clear after listening to these videos. They are indeed nothing short of miracles! Can't thank everyone enough :)

Excellent way to deliver lecture ..thanks

Great explanation!!

Excellent presentation. Love it

You are actually an IDEAL TEACHER 👌

This is exactly what I needed...thankyou so much....🥺❤

Amazing explanation!

Really clearly explained, thank you so much

thanks alot answered all my doubts.

Very interesting way of explaining things Thanks a lot

Thank you so much sir for this amazing playlist ❤ 🙏

Good concept solving examples sir ❤

Appreciate Ur efforts. Thanks I've cleared my doubts.Thanks alot❤

Lastly Great explanation about flux vs emf i.e lens law and farade law

Thank you for clearing the concept! @khanacademy

sir the explanation at the end that you gave cleared my doubt. I can't thank you enough. Thanks for helping us out

Thank you so much sir your explanation was so intuitive❤

Very deep !!!

Wow that was an excellent explanation 👏 bravo

This is sooooo brillantly Explained . Thankyouuu so much khan academy 🫀🧠

thank you so much sir...like you if everybody tells....every student become missiles to our india....once again thank you for your wonderfull amazing concept orientation...thank you sir....sir....sir

I was having a hard time understanding the graphs in my textbook so this definitely helped a lot!

Thank you so much for this. Please complete class 12 physics syllabus as soon as possible

THE BEST TEACHER AWARD GOES TO……………🎊🎊🎊🎉🎉🎉❤️❤️❤️

Like, like, like and like; absolutely nailed it with the steep slope at the end!

The best explanation ever seen

Thank you so much sir.. ❤️

OMG tysm sir..this is too good

thankyou so much sir i try alot of video i have impressed by your video

AMAZING....

thanks for your lesson

keep up the good work!

Thanks this was a huge help for my exam

Just wow💙💙💙

Brilliant explanation Sir

Your voice is so easy to understand man Seems intersting too Easy explanation

Thanks sir 🙏

can we use flux linkage as NBA sin(wt) considering theta to be the angle between flux lines and Area of the loop.....

THANKYOU FOR THIS GAWD I WATCHED SO MANY VIDEOS I WISH I FOUND THIS ONE SOONER

It makes sense

I cannot thank you enough man

Good 👍

Superb sir excellent,

You're great ❤

Thanks sir

Ahh.... Now that's a satisfying Explanation.

I have a request... Can you make a video about Electroosmotic Flow in a channel? Thank you in advance my friend. Excellent work!

Best video. Even my teacher was unable to explain it

thank you brthr

Thank you🎉

Best on KZread ❤️

You are a great guy❤️🌱😭

Thanku sir

Niceee👍

Your explanation is really handy, but the equation that you have used takes Sin instead of Cos

Thank you so much for this🙏😭💯

@SyncedGrowthHub

2 жыл бұрын

Heyy

Voice is very cool❤

Thank You ☮️🕉️

Very simple explanation. I like it. Can be harnessed this back emf, and so to be used as electric power?

@safeezrahman8823

2 жыл бұрын

Yes back emf can be harnessed from motor.. Even recent electric vehicles or trains uses the back emf to charge up its batteries.

@georgestanciu5466

2 жыл бұрын

@@safeezrahman8823 But it will be the same amount of power? or less?

@safeezrahman8823

2 жыл бұрын

Might be bit less, but good part is at least some energy is harnessed instead of total wastage.

Thanx ji

THANKS LO MAS SUMPAH, REAKSI KU SELAMA NONTON VIDIO "OALAHHH NGENE TAA SAKJANE" "OALAHH PAHAM"

Sir I have a doubt. Is the concept maximum emf is induced when minimum flux is linked is true for generators since their conductors get linked by the flux from a pole at a time

👏🏻👏🏻👏🏻👏🏻

Better than toppr

noice thanks

❤

❤️❤️❤️❤️

This is the same way voltage is induced in dc generator ? The commutator convert it to dc voltage right ?

😭sir TQ❤

So basically, E0 is the derivative of the flux, but with a different amplitude?

damn

@rongringkingking

4 ай бұрын

@Anaabee455 I got a scholarship to study nursing and my cat gave birth to 3 beautiful kittens!! And I dyed my hair 4 times. HAHAHAAHAH love you

This is equivalent to 1hour learning in class

In my textbooks it shows EMF max is at 90. Your explanation makes sense but the textbooks I'm reading doesn't. Why would they write it that 90 is at max?

@sreea2365

2 жыл бұрын

Is it written sin or cos there?

@riteshyadav1716

2 жыл бұрын

bro to get emf you have to differentiate ( cos omega t ) which becomes (-sin omega t) omega and at 90 sin =1 that's why emf is max at sin. take it this way emf is change in flux at 90 flux changed from max (cos0) to min (cos90) and hence the max emf at 90 edit:- sorry! dude i tried my best but i don't think i've explained it well, but sir in the video did it very clearly, i understood it here only.

@nomad1286

2 жыл бұрын

several teachers get this wrong... they state maximum emf is when the coil is vertical which is clearly not the case

@ranabrosranabros4265

2 жыл бұрын

@@riteshyadav1716 well explained

@ranabrosranabros4265

2 жыл бұрын

cuz it is of sin not of cos

cracked on the sticks ngl

@harshvardhanmankotia6492

2 жыл бұрын

Chup!

Why spin at all? Why not tilt back and forth across the rotational positions that cause the greatest change in flux? Most of the work to spin all the way around is wasted. My idea would cause a really high frequency, though. That a problem in the real world?

Omg!!! I can't able to clear my doublt. At first case conductor placed in perpendicular position so max number of flux lines touches to the conductor.so max magnetic field and flux linking are there. But emf value=0. How ?? Max magnetic field and flux touches to the conductor it should create max emf at begin right ???? But we consider angle of conductor sin0. So emf become zero. I can't understand . Please anyone let me explain and clear my doubt

@ranabrosranabros4265

2 жыл бұрын

In EMF equation theta is the angle btw velocity(v) and magnetic field (B) so by that angle at begining is zero as coil is about to rotate rightwards ,in direction of magnetic field , so zero EMF . And at begining flux is max but emf is not as emf as per faraday refers to change of flux not the value of flux

Sal can do accents now💀

Sir Please Solve My Doubt In figure you have taken a rectangular coil , and when this coil rotate then rate of change of flux would be constant so induced EMF should also be in constant (in rectangular shape). The induced emf will be variable (As you have shown in figure) only if when coil would be circular , because then rate of change of flux would not be constant. Sir Please Explain...I'm Very Confused !

@KhanAcademyIndiaEnglish

3 жыл бұрын

Flux happens to be BAcos(theta). Notice this result is independent of the shape of the coil. So regardless of the shape, the flux would be sinusoidal, and the rate of change of flux would be sinusoidal (a variable) too.

@vivekgupta3692

3 жыл бұрын

@@KhanAcademyIndiaEnglish ok sir thanks

@ssj-shadow1184

2 ай бұрын

@@KhanAcademyIndiaEnglish Question: Why does an EMF graph for a DC generator look different? I understand current only flows in one direction but how does that relate to the graph? Shouldn't there still be Cos(180) giving -1?

No ok!

Which white board are you using sir?

@njordapollon9631

3 жыл бұрын

Not white board. He is using applications

@pashtoon7961

3 жыл бұрын

@@njordapollon9631 please explain it a little I am also making educational videos I want to make like this. which applications can I use?

What is N, B & A?

Thanks sir

❤️