Derivation of Electromagnetic Waves from Maxwell's Equations

[@paulvercruysse]

Amazing video, I am a second year engineering student in Belgium and this video helped a great deal !!

[@swaroopnayak2914]

19:36 it should be cos not sin. Derivative of sin is cos

[@linuxgraphix6766]

Thank you for the lectures. I am home-schooling and came across your lectures. Beautiful. Please keep up with your lectures.

[@benjnrasareson908]

i think the derivation will lead to cos, but since they both cancel out on either sides it doesn't really matter.

[@diyamehta4273]

That’s what I thought.

[@xianglongmeng1232]

shouldnt the sin become cos after taking derivative around 19:00?

[@jakodasd]

Yes, but in the end it doesnt really matter because they cancel each other out. But it was the cosine.

[@sidharthan3349]

Yes ... He missed it but it didn't matter

[@Abhishek-466yadav]

Hlw sir a am indian Student I clear all concept of. Maxwell's Equation on electromagnet waves. Thanks US Teacher ❤❤❤

[@NicolasSchmidMusic]

You mixed a sin with a cos but it canceled out anyways, but thank you very much, I have been looking for this for a long time

[@bboydreamer96]

dood ur the man. im a freshman at MIT tryna self study a class. id watch this over ocw anyday

[@AKLECTURES]

MrAyshay thats awesome! make sure to check out my website, you'll probably find it much more organized than my youtube stuff. anyways, best of luck on your course! let me know how it goes :)

[@executorarktanis2323]

Yeah now it's 5 years now

[@essamhassan7943]

very good effort to derivation and explanation for the most beautiful equations in history of science

[@anwesaroy6998]

!) In (Phi)B=BA(=BAcos(theta)), why are we multiplying the area in the electric field with B? 2)How is A constant? Does it not change with time?(If E changes with time, then A should also change with time...?)

[@sir-punchalot]

Say a positively charged particle moves through a point in free space. That point in space will exhibit a mag field as the charge approaches and then also as the charge leaves (strength dependent on velocity). The mag field observed at the point in free space will reverse polarity when the charge is no longer coming but instead has passed and is now leaving (point in space goes from 0 to positive, then positive back to 0). The space sees an increase in charge, and then a decrease in charge. How fast does the mag field flip? Is this correct thinking?

[@jackiechiu20]

Thanks a lot for the clear explanation. But I have one query about the phase angle. Why there is same phase angle in electromagnetic wave but not in electric circiut

[@mightbin]

Beautiful· Derivation!!

[@NLblackscorpion]

why are you moving counterclockwise on that rectangle? What exactly is that rectangle?

[@theren8311]

speed = 1.25 (Y)

[@muhammadshafique2355]

very nice method of teaching.

[@michaelschoenmaekers]

Great Video, only the derrivation of sin(kx-wt) isn't it -cos(kx-wt)k and -cos(kx-wt)(-w)?

[@M1A2_Abrams_MBT]

I think you can use either? I'm not too sure.

[@samanzubair2483]

keep it up sir ......... respect from pakistan

[@Potatotatotatotatotato]

LIFE SAVER

[@nickasds]

How did you determine the direction of the rectangular path, I'm just having trouble with that part. Please help

[@sonurpr9207]

nickasds me too, I am Also not able to do that part

[@theopdiamond6226]

@@sonurpr9207 same here

[@مقاطعمضكة]

beautiful work thanks

[@pmanarsenal4298]

I get how he finds the velocity but in the end when he divides both sides by mu*epsilon, how does it get square rooted?

[@yawasar]

Corrected Maxwell's Equations E=cB=zH=zcD , r=ct 0=[d/dr,Del][e,E] 0=[de/dr - Del.E ,dE/dr + Del e] 0=[db/dt - Del.E, dB/dt + Del e]

[@pranavipranavi7725]

Thank u

[@donniecelestre]

question. Why not use (z + Δz) in dL?

[@awolgeordie9926]

Pure excellence.

[@ranaacademychannel7952]

Show that Cartesian components of E and H satisfy the three-dimensional wave equation using Maxwell's equations in a dielectric. Canfued in this problem please reply exam is the nearest! I live in india

[@frankakatsa8146]

This is anice lectures big up

[@rajajalal2981]

Thank you so much

[@adyday1656]

I think you’re referring to dielectric....not electrical....electricity is the discharge of field pressure.....?....

[@NicolasSchmidMusic]

WTF......What are you.....talking about?

[@joohyunlee1410]

AWESOME~!

[@Nsomia1567]

+joo hyun Lee AWESOME again.

[@netsanetwendemagegnehu3062]

10Q very much

[@stephaniedltc]

nice

[@adyday1656]

Magnetism is the mother of electricity....electricity doesn’t manifest without magnetism....we can replicate a magnetic field with electricity but...magnetism on its own is natural and not human made......I think you’ll find dielectrics....is quickly over looked....only to realise at the end of your career oops.....enjoy....maxwells results are absolute....the difference between a magnet moving over an electrical coil is different from an electrical coil moving over a motionless magnet....force and motion inertia and acceleration......Einstein in his own words admitted changing the reference to light....and using transform equations to explain away the reality of what the test results showed.....check it out....if you want to be the best...learn everything and question everything....do that and you’ll get big wages

[@KungFuKeni]

Magnetism arises from moving electric charges so I don't know what you're on about

[@kutubbiswas2401]

just supper

[@shifam.kamaluddin2253]

faizan

[@jesusmolina5951]

No vale para nada en el dia a dia pura berborrea.

[@solewalk]

I seriously doubt the lecturer understands the subject he is dealing with. Also, dealing with this subject requires sound math foundation, but the math here is a joke.

[@cristig243]

It's a confusion induced by considering a graph as a real circuit. Like E would really travel in the y direction up to y, than turn around to complete a physical loop. Shut up and calculate :)