Gauss law of electricity | Electrostatics | Physics | Khan Academy 

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The energy that we didn't search for... But the energy we needed

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I really love the way he was excited 😂❤️

This is the thing I love about physics, and learning in general. When you have the right teacher, things click and your mind explodes with happiness when it realises what the law is actually trying to say. Currently at 1:44 and in awe of this. Thank you!!!

This one has converted in one of my top ten educational videos, you explained the topic better than my college teachers could have ever done

I love his enthusiasm ✨ that makes me wanna learn more and reminds me of why in the first place I am .

i can tell that you were excited

I couldn't see your expression but could feel it. The smile on my face watching this lecture is so amazing. thank you.🙏

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Summary Of The Video.... *Gauss's Theorem* * Electric Flux is independent of radius. * If we increase or decrease the radius of sphere , the electric Flux Remain the same. * If we move the charge from the centre anywhere in the sphere then in that case also the flux doens't change . * If charge is positive then we get a positive flux * But if the charge is negative then we get a negative flux. * If we take an irregular surface in that case also flux remain the same. * If there is a hole in the sphere then the flux decreases because in that case some flux (Electric field lines) may leak through the sphere. That's why we always consider a *Closed Surface* * If we increase the charge inside a surface then the flux increases because of increase in Number of electric field lines. * Charge located outside the sphere doesn't contribute on flux. * Only those charges will contribute in flux which are located inside the sphere.

Thank you, your passion for physics saved me

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I have been teaching physics for 35 years and I have no qualms in admitting you are one of the best I have heard anywhere.You have three unparalled qualities a. Enthusiasm b. Great communication skills c. Great analogies to simplify abstract ideas.

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I literally had 4,5 doubts n questions related to this topic and I didn't found the answers anywhere, but this guy cleared all those. Kudos👍 great work man

The best educational video I have seen on RU-vid explaining the Gauss law of electricity.

I can sense and feel the enthusiasm and passion in this lesson I really appreciate this video it gives me a more defined version of Gauss's Law

I love how he gets excited while explaining the concepts. That's the true spirit 🫀

I know you don't reply for us but the the voice of this lecture was amazing

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Gosh I've always been excited about people who are just as passionate about knowledge as me. I am so glad I discovered this channel. I really hope we will cross paths one day, Manhash.❤️✨️

I love how enthusiastic this man is. Thank you so much for making a complicated topic look like a piece of cake.

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Thankyou brother mind-blowing lecture

man i fell in love with physics, this video is awesome no one explained gauss law quite like this

Excellent....For myself,the bullet analogy did the trick.

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Literally it was very helpful lecture for me my are filled with tears after understanding this concept thanks sir

Now I know why electric flux through asymmetrical surfaces is also the same as symmetrical. Huge thanks to Khan academy.

Brilliant! Mahesh sir.

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I am amazed at how well he explains it, it is amazing how much this makes sense now, his enthusiasm is contagious too !

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4:10 theta is 0, E is constant 7:20 Thankyou🌟 8:40 sphere offcentre 9:50 I am blown away😮🧐🤔u always pull my brain chords and activate them to think_ there's a rush of neurons😄 10:30 imagine that charge is shooting out bullets 11:55 😮ohkkkk 13:00 more charges 13:45

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3:26 dA is perpendicular to the sphere.

the excitement in his voice is just so pureee

Understanding at the peak level....

we know that electric field lines per unit area is directly proportional to the electric field strength ( as that's how we define EFL)..so EFL α ES... We define this quantity (where the E and S are along each other) = E•S as electric flux... so electric flux is basically EFL but in a physical quantity form.... So we can imagine it like those isotropical EFLS. So it's just some lines coming out and the best thing is, no matter what or how many closed surfaces are there covering it and from whichever orientation, all the bullets which are emitted from the charge centre, if they follow the inverse square law, we know all the overlapping distorted looking closed surfaces have the same no. of lines coming out. Also even if it was something like inverse cube law, we could get the formula using integration!!!! Happy learning :D

Thank you man. You are amazing.

Scored 93 out 100 in my 12th boards. Thanks to khan academy’s videos.

Beautiful explaination...

It's really amazing either your explanation or gauss law 👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼

I LOVE this law now, THANK YOU so much Sir. It was so helpful

I found that this is the best explanation of Guass law en earth, many many thanks. This dude rocks

Greatly explained👏🏻....

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Thank you muzammil ❤❤ Really insightful

11:37 well, I have a question. It would be 12bullets/min also but the resistivity is changed and flux's depended on it. I mean the resistivity of sphere is different from the air

I wonder that India owns this type of teacher! Love from Bangladesh!

its always amazing to learn from you i love it every damn time

Awesome!! I have a question... What if radius is approaching zero(r~0) i.e radius is comparable to the charge size What happens when radius of Gaussian surface (sphere) r < charge *radius I mean Electric flux inside the charge 😯

i love how u never mentioned 'hard' 'vast' 'complicated' but rather 'interesting' 'exciting'

Excellent explanation sir!! Thank you

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Nice video and presentation. Following page 12:00 what will be the model behave when the sphere has an opening?

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10:31 12:25 even though i understood gauss's law earlier, still i couldnt apply it in questions earlier. But this bullet's analogy really helped me to apply it to non-trivial situations with ease. So, thanks a lot for giving this analogy/memorisation tool.

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Good presentation, Monesh. 👍

Sir please make video on solid angle

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6:01 what if the area is not sphere? Will the equation change?🫣🫣

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Good video, but the electric flux is equal to the charge enclosed by the Gaussian surface. It is the integral of the electric flux density D, not the integral of the electric field intensity E. D = eps*E. In fact, the flux depends only on the charge enclosed. The electric field intensity depends on the charge enclosed AND the permittivity of the space (eps).

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