This is by far the best explanation I have seen. Really clears up how an electromagnetic plane wave looks like in space. It does not look like a rope, but rather more like layered surfaces each one with a constant value (magnitude and direction) of the electric field. Thanks a bunch!
thank you so much for your explanation. Finally a explanation that is sufficient to my needs. Why dont we have footage in TV! educational aspect of TV is highly unused.
9:18 wish to see E and B plane waves both are present with any imagination, ok to plot them in extra boxes without overlapping, hope to see vectors in them
I like this video very much, but there's a bit of difficulty at 6:50. Suddenly, vector arrows appear attached to a couple of the peaks of the sine wave representing E magnitude. This is treating the E-magnitude graph line as having a position in space, which it does not have, and thus it's a bit of a distraction. Those E vectors should start on the z-axis and terminate on the sine wave magnitude line, like here: en.wikipedia.org/wiki/File:Onde_electromagnetique.svg And then to make matters more confusing, the example red and green plane segments, representing flat regions of interest in _spatial space,_ jump up and down tracking the sinusoidal graph of _E_ which is in the domain of E magnitude and direction.
Good comment. I was about to do the same. Also, Eo is a constant vector, it should not vary from one wavefront to another plane to another. The exponential multiplies the E0 vector to give the E vector which seems to change parallel to the x-axis. But I may be wrong, the axe of oscillation also seems to be 45 degrees to the xy-axis and that would explain why he draw the vector at those angles.
Do the electric field lines always point in the same direction as K, or can you have a wave moving through space that are pointing in another (arbitrary) direction?
That was not very clear. He means that given a snapshot in time, all points on any particular xy plane are seeing the same E vector (E is constant across that xy plane), but move to a different plane and the value of E will be different, though again constant across that plane.
Why do we use E & H ? aren't we supposed to use E & B which stand for something physical ?!!! so the intrinsic impedance would then equal the speed of light.
Wow these videos are excellent. Would you be able to recommend a good electromagnetics book? I'm using Elements of Electromagnetics by Sadiku for my class.
when electric field in x direction and magnetic field in y direction. how is it plane wave because if i move in y direction E is changing while definition of plane wave tells that it should be constant for this plane. please clear this doubt.
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For the first time after more than ten years of taking the course I finally understand why the term “plane wave”. Thank you so much, you’re awesome!
Thank heavens for someone who knows how to explain things intuitively, and is willing to record himself doing so.
duuuude... you're so much better than my teacher!
This is by far the best explanation I have seen. Really clears up how an electromagnetic plane wave looks like in space. It does not look like a rope, but rather more like layered surfaces each one with a constant value (magnitude and direction) of the electric field. Thanks a bunch!
Fantastic video, thank you for making these concepts intuitive. Your teaching in conjunction with the applets makes it very clear.
this video is fantastic! taught me a lot. thank you!
I’ve been trying to get an intuition for this since I learned acoustics 2 years ago and I finally got it thank you bro
Very helpful. So far the best explanation of plane waves.
thank you so much for your explanation.
Finally a explanation that is sufficient to my needs.
Why dont we have footage in TV! educational aspect of TV is highly unused.
Awesome video! Thanks, and explain so clearly!
thanks for helping me I'm from Morocco it take me time to understand how waves to be plane
9:18 wish to see E and B plane waves both are present with any imagination, ok to plot them in extra boxes without overlapping, hope to see vectors in them
I like this video very much, but there's a bit of difficulty at 6:50. Suddenly, vector arrows appear attached to a couple of the peaks of the sine wave representing E magnitude. This is treating the E-magnitude graph line as having a position in space, which it does not have, and thus it's a bit of a distraction. Those E vectors should start on the z-axis and terminate on the sine wave magnitude line, like here: en.wikipedia.org/wiki/File:Onde_electromagnetique.svg And then to make matters more confusing, the example red and green plane segments, representing flat regions of interest in _spatial space,_ jump up and down tracking the sinusoidal graph of _E_ which is in the domain of E magnitude and direction.
Good comment. I was about to do the same. Also, Eo is a constant vector, it should not vary from one wavefront to another plane to another. The exponential multiplies the E0 vector to give the E vector which seems to change parallel to the x-axis. But I may be wrong, the axe of oscillation also seems to be 45 degrees to the xy-axis and that would explain why he draw the vector at those angles.
11:11 dont "circular waves" mean same as circular polarised wave - which is altogether different from the spherical wave shown above??
thanks a thousand times!
First 4 minutes… just… thank you.
Really good lecture. Cleared the concept for me.
Isnt at 02:37 the equation not correct? It should be the real part of that phasor
excellent explanation
Magnífica explicación, me resultó muy útil :)
Thank you man your explanation is so clear..
Thanks to you help the all engg students
wow, you sir are awesome, keep it up!
Sir does it mean that if one wave travels then it procuces electric field all around the space orthogonal to propagation
Do the electric field lines always point in the same direction as K, or can you have a wave moving through space that are pointing in another (arbitrary) direction?
How can I define the origin and the vector r. Can I define the origin anywhere? And r any position on space?
@5:14 says' there is some constant value of E in space and it varies with space...' confusing??????
That was not very clear. He means that given a snapshot in time, all points on any particular xy plane are seeing the same E vector (E is constant across that xy plane), but move to a different plane and the value of E will be different, though again constant across that plane.
What's the differens between plane waves and longitudonal waves. Sound waves could also be seen as planes moving forward.
Why do we use E & H ? aren't we supposed to use E & B which stand for something physical ?!!! so the intrinsic impedance would then equal the speed of light.
great lecture.
what was the book you mentioned at the beginning of the video?
Bro, how do you graph a wavefront in matlab or mathematica?
Thank You. Video was very informative.
The animation helped a ton! Thank you!
Didn’t he describe uniform plane waves here? Can’t you have plane waves where the amplitude of the wave is not constant over the wave fronts?
For a wave, if the plane of all the points on the plane surface are the same it is called as plane wave.... I got it thanks
Thanks sir
Wow these videos are excellent. Would you be able to recommend a good electromagnetics book? I'm using Elements of Electromagnetics by Sadiku for my class.
how's the book sir bcz recently someone suggests me to buy it for solving problems?
@@meghjitmajumder3468 good one boy
when electric field in x direction and magnetic field in y direction. how is it plane wave because if i move in y direction E is changing while definition of plane wave tells that it should be constant for this plane. please clear this doubt.
got it. basically equal vectors at any point in xy plane. vector direction is telling the polarization.
Then delete this
Cool bro
above amazing
6:13 T I re-L "temporal varitation"
thanks
why don't they teach these things in class?
THANK YOUUUUU SIR . forever ;_;
Always speaking about plane what plane