That was well explained. But in this example we had this charged particle which was oscillating and thus generated the oscillating E field we can call EM wave. But we get EM wave when ever charged particle is in acceleration don't we? So that it doesn't need to osculate? Is there a way to explain the emission of em wave in that case? Also a student of mine asked about the phase shift of 180 degrees that occurs in the Electric Field of a EM wave, when reflected from an optically denser medium. Is there an intuitive way to explain that or is it just pure math? Thanks in advance!

@PhysicsMadeEasy

3 жыл бұрын

Hello Visa, Question1 (acceleration of charged particle): Yes, we do, because accelerating the charge, will create a perpendicular disturbance in the field lines (thus a variation in the direction of the E Field). A variation of the electric field is radiation. A good visualisation is provided by this video: kzread.info/dash/bejne/p4p2lamYdcfPnZc.html. And you can explore more with this inspiring simulation: kzread.info/dash/bejne/oXxrubSEl8-xfs4.html The second question was trickier (why phase change of pi). It is hard to avoid the post high school math here… and it is true that most lecturers explain that it occurs and when, but not why… You can roughly see it that way, by referring to the amplitude reflection coefficient Erefl/Eincident = r = (n1-n2)/(n1+n2). When n2>n1 the ratio of amplitudes is negative, implying a phase flip. More info here: www.usna.edu/Users/physics/mungan/_files/documents/Scholarship/PhaseChange.pdf Good questions! I hope my answers help you.

@visasaarinen6051

3 жыл бұрын

@@PhysicsMadeEasy thank you! This was exactly what I was looking for!

@JL-fh4qw

2 жыл бұрын

@@PhysicsMadeEasy When an electric wave oscillates is there a delay for when the magnetic field oscillates?

@PhysicsMadeEasy

2 жыл бұрын

@@JL-fh4qw Hi J.L., in vacuum , no there is not: the oscillation and of the E field and that of the M field are in phase.

@Littleprinceleon

Жыл бұрын

@@PhysicsMadeEasy please, can you provide a suggestion for a somewhat in-depth but still intuitive source on fields (classical versus quantum)? Preferably in the form of YT videos. Thanks a lot. (I've tried Sean Caroll's Biggest ideas of the universe, but cannot put those pieces together in a more or less coherent whole).

I have to say this is the first time I am starting to understand what eletromagnetic wave is. Thank you.

@tuckercoffin2164

2 жыл бұрын

Omg same!

@raphaelfrey9061

Жыл бұрын

You probably never saw eugene khutoryansky

@sheiladefauw5292

8 ай бұрын

@@raphaelfrey9061cfg❤rrdr de😂drrrrrrre

@sheiladefauw5292

8 ай бұрын

@@raphaelfrey9061😂tutu y he ftme

@sheiladefauw5292

8 ай бұрын

@@raphaelfrey9061 w

Omg finally I found a professor I like

@rajendrapatel9758

3 жыл бұрын

Good

This little video captured what miles of blackboard, chalk and textbooks couldn't. Thanks

@PhysicsMadeEasy

7 ай бұрын

Hi SuperGirl, I am glad you enjoyed this video. Thank you for letting me know :-)

This is one of the most powerful explanations I have ever seen. Please make more videos.

@PhysicsMadeEasy

3 жыл бұрын

I sure will, thank you Bharath! There are many more on the channel. Feel free to explore!

@billaday8589

Жыл бұрын

@@PhysicsMadeEasy , thank you !

Very humble, respectful and knowledgeable person. Thank you.

How i wish i had a teacher like you in my life SIR.I love physics but graduated with a third class degree and still doing in teaching it in my locality nigeria. Thanks for the video my mentor.

@PhysicsMadeEasy

9 ай бұрын

Hi Muhdi, thank you so much for these very kind words. All my wishes for a good continuation of your studies of physics, and also my best wishes of success in inspiring young students when teaching it! :-)

For those wondering why the magnitude of E is changing: “Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time”

@phoumint

2 жыл бұрын

Thank you so much ❤

@Lorenzo-zg3ct

2 жыл бұрын

Question. How can it reverse directions?

@frankdimeglio8216

Жыл бұрын

@@phoumint EINSTEIN IS UNCOVERED BY DIMEGLIO: WHAT IS E=MC2 is dimensionally consistent, AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS the rotation of WHAT IS THE MOON matches the revolution. Indeed, consider what is the man (AND THE EYE ON BALANCE) who IS standing on what is THE EARTH/ground; AS touch AND feeling BLEND; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE). Indeed, WHAT IS GRAVITY is, ON BALANCE, an INTERACTION that cannot be shielded or blocked. GREAT. BALANCE AND completeness go hand in hand, AS it all CLEARLY makes perfect sense ON BALANCE. Magnificent. By Frank Martin DiMeglio The sun's tide-generating force is about half that of the moon. One half times one third is one sixth. Consider what is water. The density of what is the Sun is believed to be about one quarter of that of what is THE EARTH. The diameter of WHAT IS THE MOON is about one quarter of that of what is THE EARTH. The density of the human body is about the same as water. Lava is about three times as dense as water. Pure water is about half as dense as packed sand/wet packed sand. We can multiply one fourth times two thirds in order to ALSO get the surface gravity on the Moon in comparison with what is THE EARTH/ground. The gravity of the Sun upon the Moon is about TWICE that of what is THE EARTH. The lunar crust is about TWICE as thick on the far side of what is the Moon. Notice what is the TRANSLUCENT AND BLUE sky ON BALANCE. The maria (lunar “seas”) do occupy ONE THIRD of the visible near side of what is the Moon. One half times one third is one sixth. What is E=MC2 is taken directly from F=ma, AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS the rotation of WHAT IS THE MOON matches the revolution. Consider what is the orange AND setting Sun ON BALANCE. Consider what is THE EYE ON BALANCE. Consider what is the fully illuminated AND setting/WHITE MOON ON BALANCE !!! What is E=MC2 is dimensionally consistent. The land surface area of what is THE EARTH is 29 percent. This is EXACTLY between (ON BALANCE) what is one third AND what is one fourth. The maria occupy one sixth of what is the Moon. The BULK DENSITY of what is the Moon is comparable to that of (volcanic) basaltic lavas on what is THE EARTH/ground. Consider what are the tides. ONE HALF times one third is one sixth. ONE QUARTER times two thirds is one sixth. What is gravity is, ON BALANCE, an INTERACTION that cannot be shielded or blocked. CLEAR water comes from what is THE EYE (ON BALANCE). ON BALANCE, what is THE EARTH is ALSO BLUE !!! GREAT. BALANCE AND completeness go hand in hand. What is LAVA IS ORANGE, AND it is even blood red. Awesome. Yellow is the hottest color of lava. Blue is the hottest flame color. Note: Consider what is the blue flame. The lunar surface is chiefly composed of pumice. By Frank Martin DiMeglio In understanding SPACE, what is gravity, TIME, AND time dilation (ON BALANCE), it is important is it to understand what is a BALANCED displacement of what is SPACE. ELECTROMAGNETISM/energy is gravity ON/IN BALANCE. Consider what is E=MC2. TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Consider TIME AND time dilation ON BALANCE. (c squared CLEARLY represents a dimension of SPACE ON BALANCE.) Indeed, the stars are POINTS in the night sky ON BALANCE. The rotation of WHAT IS THE MOON matches the revolution. Consider what is THE EYE, AND notice what is the TRANSLUCENT AND BLUE sky ON BALANCE. NOW, consider what is the BALANCED MIDDLE DISTANCE in/of SPACE. CLEARLY, BALANCED inertia/INERTIAL RESISTANCE is fundamental (ON BALANCE). “Mass"/ENERGY IS GRAVITY. ON BALANCE, consider what is the orange (AND setting) Sun. “Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/as what is BALANCED electromagnetic/gravitational force/ENERGY, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE (ON BALANCE) consistent WITH E=MC2, F=ma, TIME, AND time dilation ON BALANCE. This CLEARLY AND NECESSARILY represents, DESCRIBES, AND INVOLVES what is possible/potential AND actual ON/IN BALANCE, AS ELECTROMAGNETISM/energy is CLEARLY (AND NECESSARILY) proven to be gravity (ON/IN BALANCE). Notice what is the fully illuminated (AND setting/WHITE) MOON ON BALANCE. Great. TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Indeed, inertia/INERTIAL RESISTANCE is proportional to (or BALANCED with/AS) GRAVITATIONAL force/ENERGY; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE). This CLEARLY explains what is E=MC2 AND F=ma ON BALANCE, AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !! (Consider TIME AND time dilation ON BALANCE.) Great. Indeed, consider WHAT IS THE EARTH/ground ON BALANCE. I have mathematically proven why the rotation of WHAT IS THE MOON matches the revolution, AS ELECTROMAGNETISM/energy is CLEARLY (AND NECESSARILY) proven to be gravity (ON/IN BALANCE). Consider TIME AND time dilation ON BALANCE, AS the stars AND PLANETS are POINTS in the night sky ON BALANCE; AS c squared CLEARLY represents a dimension of SPACE ON BALANCE. (Consider what is THE EYE ON BALANCE.) I have mathematically proven what is the fourth dimension, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!! I have explained why what are OBJECTS may fall at the SAME RATE. By Frank Martin DiMeglio

@figefago

11 ай бұрын

@@Lorenzo-zg3ct You have to reverse voltage, assuming you have battery then change + with - and vice versa :) If you do it more more frequently then you have AC current :D

This 3 minute video was enough for me to subscribe to your channel. Great stuff!

i haven't imagined that i could be able to understand the electromagnetic waves but after watching this i feel its amazing

@PhysicsMadeEasy

6 ай бұрын

It is, amazing isn't it! And often easier to understand than many textbooks would make you think... I lie in the title of my channel: Physics does not need to be made easy. It is already :-)

Complicated concepts made easy! Great job!

Extremely underrated 😭

Indeed really well explained. I have seen a few videos on this topic, but you explained it the best! Well done.

Your explanation of the topic was so clear, I never thought I could understand it so easily! Thank you 😊

@PhysicsMadeEasy

Жыл бұрын

Merci Celine :-)

What a masterpiece of explanation. It's amazing how with a combination of videos we can understand great things.

@PhysicsMadeEasy

Жыл бұрын

Hello Byynx, thank so much for your kind words. I am so glad that my work enlightens people on the wonders of our universe! Comments like yours make me feel like achieving my goals 😊

@lanewilder912

7 ай бұрын

🎉❤😢

This is the 1st video where I actually understoood EM wave and how radio works, thanks!

That is the best explanation I have ever come across , any electrical tutor / electrician / teacher I have asked to explain this has been stumped . Thanks very much !!

@PhysicsMadeEasy

8 ай бұрын

Hello Jonathan, I appreciate very much you letting me know. It gives me a boost of energy and encouragement when I read that I reach my goal like this :-)

Thanks a lot I never imagined it that way. You definitely made me understand this topic better. The relation between electron/change movement and light was just mind blowing!

@PhysicsMadeEasy

2 жыл бұрын

it is, isn't it? That's why I like physics! :-)

You knew exaclty what to explain how to explian, most videos skip the basic parts and go straight into concepts living us in the woods without much explianing, but you sir knew exaclty what our issues where with this topic and you explianed it to us not as if we were fellow prefesors but as if we were what we are and that being students. THANK U KEEP IT :)

@PhysicsMadeEasy

Жыл бұрын

Hello Helias, thank you for your kind words... You summed up why this channel exists: when I teach my real life students, I always make sure that the basic concepts I need to use are clear for them, otherwise, it can create or even crystallize confusion in their minds... I made this channel , focused on the basics, so that students can fly with their own wings...

Awesome explanation Sir, Hats off 🙏🏻😇 You did the explanation and theory in a calm manner , like not too speed not too slow.... Its quite fascinating...

Thank you for rescuing me out of all the confusion on em waves. Your 3 minute presentation is worth the research of a lifetime. 🙏🙏🙏🙏

@PhysicsMadeEasy

Жыл бұрын

Thank you so much Imallright. Some people spend a lifetime of research looking for complex things, which is good and useful for society. Surprisingly, it needs also a lot of time and teaching experience to present basic concepts in a pedagogical way while remaining rigorous... (I wished I had me when I was a student lol!)

Hands down the best explanation! Thanks...

I love your work! thank you for making Physics not just easy but cool!

Amazing video! Thanks for your work!

So far d most comprehensive explanation of electromagnetic waves available on Internet .....!!!! Thank you 🙏

@PhysicsMadeEasy

9 ай бұрын

You are welcome. I am glad that this video brings a little clarity to so many!

Beautifully explained.

Very simple short and concise

Wow. Thank you so much. I self-taught AP physics 1 and 2, and got 4 on both the exams, but I was struggling to grasp this concept for so long. You made it so easy to understand this. I wish I found you 2 years ago.

@PhysicsMadeEasy

3 жыл бұрын

a 4 in AP Physics while self taught. Well done! Thank you so much for the kind words!

@lananhnguyen7415

3 жыл бұрын

Thank you so much for the encouragement. Please keep up with your good work. That help students like me a lot.

@nk4sii

5 ай бұрын

NICELY DONE 😊😊😊❤❤❤❤ I AM HAPPY FOR YOU 👍🏿👍🏿👍🏿🙏🏿🙏🏿🙏🏿✌🏿✌🏿✌🏿👊🏿👊🏿👊🏿

Thank You for this easy to understand explanation..

THANK YOU SO MUCH I HAVE BEEN HAVING A HARD UNDERSTANDING THIS AND YOU CLEARED IT UP THANK YOU!!!!🙏🙏

Just discovered your channel. Very enjoyable viewing. Love your style of presentation. New sub.

@PhysicsMadeEasy

3 ай бұрын

Hello Rich. I am glad you enjoyed your visit to my channel. Thank you for you kind and encouraging words. You are welcome to visit again anytime :-)!

This art in explaining physics thankyou😊

So short, crisp and to the point. Thanks teacher

@PhysicsMadeEasy

9 ай бұрын

You are welcome... That's what I try to do: Make physics easy. Thank you for your kind feedback :-)

You made it so easy to understand

This was great. I love a short, precise explanation!

@PhysicsMadeEasy

Жыл бұрын

Hi Dan, I am glad you liked it. Thx for the feedback :-)

Loved it. Clearly explained in such a short span!

@PhysicsMadeEasy

2 жыл бұрын

Hi Vanshita, thank you for letting me know you enjoyed the video :-)

thank you for this amazing video explanation sir !!⚡💡

Wish we had these excellent, graphic learning-assist videos when I was doing electrical engineering at 'Varsity in the early 1970s

@PhysicsMadeEasy

7 ай бұрын

Thank you Max for your comment, especially that I do the graphics myself (just using Powerpoint :-) ). Oh, and I agree. Sometimes I think that if I had access KZread material when I was a student (late 80s, early 90s), my life as a student would have been much less painful, and I probably would have won a bunch of Nobel prizes since haha! Yet, the grass appears always greener elsewhere: I still wonder why the average level of young people in maths and sciences has been falling these last few decades (according to many statistics). It's quite counterintuitive...

Excellent explanation, thank you

Very easy to follow but very informative.

I just stumbled onto this video and i hope you never stop creating more videos

@PhysicsMadeEasy

2 жыл бұрын

Thank you Mubin for your kind words. It's true I haven't posted a video for a while: so much on my plate right now! But making new videos is the plan, so expect a burst of new fun physics videos when the time comes!

Very well explained... Thank you

Excellent explanation! Thanks

Excellent explanation. Thank you.

Awesome video as always!

Informative video

sir I can't thank you in words . ❤️❤️ I don't know why all teachers are not like you . my teacher explained me and whole KZread explained me but I was not getting feel of this topic . I was able to solve em wave numericals but wasn't understanding what's happening in real . but now my all concepts are crystal clear. again thank you so much 🙏🏻🙏🏻🙏🏻💖. I have subscribed your channel and pray for millions of subscriber on you channel . ❤️🙏🏻🙏🏻🙏🏻

@PhysicsMadeEasy

2 жыл бұрын

Thank Sunny, I am super happy that this video helped you so much! Please keep praying for that milliion subs... It's quite a long way haha. It would make me euphoric though to know my work helped so many people !

Thank you for this information.

The explanation was superb! I learned a lot in a span of almost 4minutes than our 1hr class discussion. Thumbs-up! 👍👌

@jacobchristner7129

3 жыл бұрын

I’m teaching this stuff and taking a lot of notes. Lol.

@martinstubs6203

9 ай бұрын

@@jacobchristner7129 Well you might as well start teaching the right stuff: No more magnetic fields, only electric charge.

@user-ky5dy5hl4d

6 ай бұрын

@@jacobchristner7129 If you are teaching this stuff then answer me: what causes the speed of light?

Great example and explanation. Great work, thank you.

@PhysicsMadeEasy

2 жыл бұрын

You are welcome, I am glad it helped!

Well explained! Thank you

@PhysicsMadeEasy

Жыл бұрын

You are welcome Spammer :-)

Great video sir 👏👏

Great explanation

Brilliant sir. Thank you.

Thanks sir making physics easy ❤️

This is excellent, thank you.

Wwow.. really physics made easy.. thank you very much sir..

Amazing explanation!

Thanks, great explanation

Thank you sir short and sweet

I love the way he says cosine 1:10

That was spectacular!

I'm brazilian, finally i can understand it, this is, learn how eletromagnetic waves are origninated. Thanks!!!

@PhysicsMadeEasy

3 жыл бұрын

Hi Tomas, then it means my video has reached it's goal. Thank for the feedback, it's motivating!

This was cool af. Thanks for posting!

Keep going fav physics teacherrr❤

Well explained

Yes I enjoyed the video.. Nice explanation sir ! A big salutation from Morocco !

@PhysicsMadeEasy

2 жыл бұрын

Hi حرية كرامة , Thank you, and salutation from France!

அற்புதமான விளக்கம்...

@PhysicsMadeEasy

2 жыл бұрын

நன்றி :-)

This was by far the easiest explanation that I have encountered.

@PhysicsMadeEasy

10 ай бұрын

I am glad you enjoyed my approach. Thanks for letting me know :-)

Thank you sir.

Thank you so much. What a nice presentation of electromagnetic wave.

@PhysicsMadeEasy

6 ай бұрын

You are welcome, and I am glad you liked it.

Outstanding Video!

@PhysicsMadeEasy

Жыл бұрын

Thank you Samiul

What a video sir. Fantastic.

@PhysicsMadeEasy

2 жыл бұрын

Thank you Rajesh!

Nicely explained. My Physics teacher never said about this.

Bestest video ever made on this topic. Thanku so much sir!💜

@PhysicsMadeEasy

2 жыл бұрын

Thank you very much for your comment Aditi. I am glad you enjoyed the video :-).

Thank you for the explanation, sir. Definitely sharing this video and channel with my friend.

@PhysicsMadeEasy

10 ай бұрын

Hi Moe, I am glad you enjoyed it and that it was useful to you!

Merci beaucoup pour cette vidéo !

Well explained. Lots of love 😍😍😍

Thank you for this sir.

Great video

REALLY LIKED THIS EPIC EXPLAINATION SIR. LOVE FROM INDIA❤️

Very informative.

An informative video

Your lecture is awesome.

@PhysicsMadeEasy

Жыл бұрын

Thank you for your kind words Sharda. I am glad you appreciated it :-).

You are a magnificent maestro!

Very nice!!!

Awesome explanation.👌 Thank you 🙏

@PhysicsMadeEasy

6 ай бұрын

I am glad you enjoyed it Paruthi, Thank you for your kind words

You are an amazing explainer.Keep doing such work that can help us.Thanks a lot for making.

@PhysicsMadeEasy

2 жыл бұрын

Hello Nazmul, thank you for your kind words. They encourage me!

@nazmulhuda5145

2 жыл бұрын

And u encourage me to learn more.

Loving this

It took some time for me to process it but I get it now! Thank you very much!

@PhysicsMadeEasy

6 ай бұрын

You are welcome. I am glad my work helped you learn something new :-)

Thank you for the video. Subscribed.🌱

@PhysicsMadeEasy

5 ай бұрын

Welcome to Physics Made Easy Berni. Feel free to explore!

Finally I understand the what is electromagnetic wave actually. Thank you Professor, May Allah Subhanahuwataala bless u.

@PhysicsMadeEasy

2 жыл бұрын

Thank you Muhammad for your kind wish. I am glad my video helped you.

@kamariahrajainthiran1805

Жыл бұрын

@@PhysicsMadeEasy thanks for sharing your simple information 🙏👍

Best explanation

Your amazing 👏 work and you answer my questions thank you 😊 hats off to you

@PhysicsMadeEasy

Жыл бұрын

I am glad my video helped Sawinder

Thank you very much

Thank you for this!

@PhysicsMadeEasy

2 жыл бұрын

You are very much welcome :-)

Very good 🙏🙏🙏🙏🙏🙏

amazing 🤯 thank you

I must say this vdo is quite short and at the same time informative too along with an intuitive understanding 👍

@PhysicsMadeEasy

2 жыл бұрын

Thank you Samishka :-)

Very nicely explained. Thank you.

@PhysicsMadeEasy

8 ай бұрын

You are warmly welcome