I watched almost all your electromagnetism videos and my misconception that great content on RUclips must be highly viewed or should come from a famous channel has been broken. Unbelievable that such quality content is freely available for all that too in small 10-12 min videos. Your method of teaching so intuitively and logically is awesome!!
I don't know that if Khan Academy wasn't famous 2 years ago but it is very well known now. I have a feeling that its website was still famous at that time.
I've been reading and watching videos on this topic, but couldn't find any satisfactory content that could explain it in such intuitive way! Now everything make sense. Thanks!
I was trying to understand why the current leads the voltage from text books and couldn't. After the first minute or two of watching this video it was obvious! Thanks!
Suppose voltage on charged capacitor is V. Now, apply External electric field with voltage V across capacitor but in opposite direction to earlier voltage. Even if you connect two plates of charged capacitor with wire, there will be no current in wire because net voltage across capacitor is V-V = 0 but there are external voltage due to electric field. Now, vary this electric field sinusoidely .
Thank you for your great educational lessons I have question please : i am confused how we can write : Vs= Vc knowing that the capacitor "gradualy" raise its voltage and doesnt respond instantaneously with the voltage source ! , why we are ignoring this fact and treating capacitor as if it is a resistor ? Thank you in advance
Yes, my question exactly. Apparently the current is so high that the voltage across the capacitor is almost exactly in sync with the voltage of the power source. In that case the phrase 'current leads the voltage because the capacitor must first be charged' is not correct. It should say something like 'current leads the voltage because it's related to the difference in voltage which is maximum before the voltage peaks'.
But why more change in voltage means the current should reach the maximum value? Edit: I get it, since the voltage change is maximum therefore the current it induces should also change by maximum, any other change is lower than the maximum change and hence current doesn't reach a higher value.
One second... When the generator voltage is increasing from zero,how the current is maximum? There is no voltage in the circuit there should not be a current.... I studied in Dinamo that when the voltage increase the current increase as the same
It's because change in voltage is maximum at 0V (the graph is the steepest) which means current must be maximum so that enough charge flows on capacitor and that it's voltage changes fast. When voltage reaches maximum the voltage change is the slowest which means the current doesn't need to supply as much charge to the capacitor. That's why current leads voltage on capacitor.
Because at 0V slope of voltage is the steepest which means the voltage change is the fastest in that moment compared to when voltage reaches the peak when voltage is changing very slowly. Faster change in voltage means more current must flow to the capacitor. There's equation: ic = C * dv/dt
I watched almost all your electromagnetism videos and my misconception that great content on RUclips must be highly viewed or should come from a famous channel has been broken.
Unbelievable that such quality content is freely available for all that too in small 10-12 min videos.
Your method of teaching so intuitively and logically is awesome!!
I don't know that if Khan Academy wasn't famous 2 years ago but it is very well known now. I have a feeling that its website was still famous at that time.
Thank god he's not teaching in hindi😄😃
i didn't get that at first but..... 🤣🤣
😢@@vasukumar5727😢❤
hell yaah man
But why?
Mai smjha ni , khba kya chahte ho
I've been reading and watching videos on this topic, but couldn't find any satisfactory content that could explain it in such intuitive way! Now everything make sense. Thanks!
Am not India but honestly speaking India as classic and well explaining tutors, thank very much for the video
I can see how much passion u have for teaching in ur lectures and I appreciate ur work man 😊 keep going and do well✨
I watch many videos to find what happening here but this video is what I search for. Thank you very much sir!
This is the absolute best channel ever
For a year i didnt understand this but now i get it thanks to you
Love this video. Thanks!
God level explanatory skills ....
Hats Offf man.... Fan of you
This was extremely helpful in my college course! Thank you for your time :)
As a commentary on current lead volts in capacitor, Existing video!😄
Well teaching, Thank u 🥰
Thank you Khan Academy india!
How he expresses is top notch.
Amazing Outstanding Mind Blowing Fantastic
I went through 3 relative videos but still did not understand the thing, this one helped me out. Thank you for the nice present.
I think this lecture is the best among those on here, about the capacitor current lead. 😀
Nice explanation. Thanks. It is helpful.
In the same manner explain lagging of current in inductor.... ..
I was trying to understand why the current leads the voltage from text books and couldn't. After the first minute or two of watching this video it was obvious! Thanks!
Some one give him an award for love pf physics ,love u sir. ..
beautifully explained! Thank you soooo much!
Finally i got answer of my question
Yes me also
Suppose voltage on charged capacitor is V. Now, apply External electric field with voltage V across capacitor but in opposite direction to earlier voltage. Even if you connect two plates of charged capacitor with wire, there will be no current in wire because net voltage across capacitor is V-V = 0 but there are external voltage due to electric field. Now, vary this electric field sinusoidely .
Well that is exactly the rate of change. We can now say that current I is proportional to the rate of change of voltage V wrt time 😊
Man i also want to be charged like capacitor
Excellent 👍
Thanks bro for helping out in our concepts 🥰🥰
Where does the current come from.what triggers it to begin. What generates it and how 🤔
Ac generator. I think he talks more about this in his lessons on inductance where he explains how the ac geneotor works.
Very nice sir
Mind blowing.... Flawless
Thank you for your great educational lessons
I have question please : i am confused how we can write : Vs= Vc knowing that the capacitor "gradualy" raise its voltage and doesnt respond instantaneously with the voltage source ! , why we are ignoring this fact and treating capacitor as if it is a resistor ?
Thank you in advance
Yes, my question exactly. Apparently the current is so high that the voltage across the capacitor is almost exactly in sync with the voltage of the power source. In that case the phrase 'current leads the voltage because the capacitor must first be charged' is not correct. It should say something like 'current leads the voltage because it's related to the difference in voltage which is maximum before the voltage peaks'.
Thank u soooooooooo muuuuuuuccccchhhhhh sir
Thanks 👍
Superb 😄
I can't stop laughing while watching this video even if I am in the library studying...love your videos man
Thank you so much again ❤️❤️❤️
very interesting
But why more change in voltage means the current should reach the maximum value?
Edit: I get it, since the voltage change is maximum therefore the current it induces should also change by maximum, any other change is lower than the maximum change and hence current doesn't reach a higher value.
Amazing!
Thanks man 👌
superb explanation 👌
One second... When the generator voltage is increasing from zero,how the current is maximum? There is no voltage in the circuit there should not be a current.... I studied in Dinamo that when the voltage increase the current increase as the same
It's because change in voltage is maximum at 0V (the graph is the steepest) which means current must be maximum so that enough charge flows on capacitor and that it's voltage changes fast. When voltage reaches maximum the voltage change is the slowest which means the current doesn't need to supply as much charge to the capacitor. That's why current leads voltage on capacitor.
Waiting for all AC circuit videos!!
Please explain power in AC circuits!!
Super sir
Guys please keep the playlist in correct order its furstrating
I am sorry but can you all stop complaining over a small things? Just search the topic up
@@asmakhatoon6691 oOoo
It will be frustrating when you'll start paying for such content. Stop complaining.
Capacitors and current are kinda like sex. Someonetimes the partner wants to be filled up quickly and other times it wants it more slowley
DAMNNNNNNNNNNNNNNNNN
Sis plz explain in hindi repley me
English
Shut up
First Comment 😂
But why we taking the Current on peak at 0 position?
@ 0 position there is no current and voltage ....!!!!
Because at 0V slope of voltage is the steepest which means the voltage change is the fastest in that moment compared to when voltage reaches the peak when voltage is changing very slowly. Faster change in voltage means more current must flow to the capacitor. There's equation: ic = C * dv/dt
poor explanation
You can see nothing if you are blind
@@JHANSI_REDDY so true😂