Physics - Advance E&M: Ch 1 Math Concepts (35 of 55) Spherical Unit Vector Conversions***

[@gagemarshall2554]

I stared at this for 90 minutes last night and I couldn't make sense of this. I watched your 9 minute video and now it makes complete sense. Thank you so much! You are much appreciated 😁👍

[@ibrahimberber5364]

I dont know how to thank you for this lectures. The videos helped me in the previous courses now I'm trying it to pass Electromagnetism. I wish i could started to study earlier but even its 4:59 a.m and you have midterm I at 9:00 a.m. i wont give up :D. I feel like i got this. Gues we'll see

[@suniljacksondsouza]

I have been able to resolve so many math problems just because of the way you put complex problems in a very simple manner. Thanks professor I am really indebted to the knowledge you share. Its simply priceless.

[@mitzpicardevelopment1500]

Thanks so much for these lectures (1-35). It helped me understand my lessons because of your simplified explanations as other say. I really was thankful.

[@MuhammadAhmedMuqtadir1]

I've been watching your videos in 2020 and its been a great help. I dont know if you'll see this but thank you for making these videos and I hope you will finish your series.

[@MichelvanBiezen]

Thank you and yes, we have a lot of series to complete. With the 2 of us, it will take many years to complete all the material we started, but we are now working on completing everything step by step, while also making videos on how to prepare for and take tests.

[@ashutoshkumawat3690]

it took me time... but Prof with due respect YOU ROCKED!!!!

[@shreenmohamedfath-allah6997]

thank you so much for these lecture, you are unique. please complete your lectures in E & M

[@priyankkumarsingh2749]

Great video Sir. I appreciate you from India....😅

[@MichelvanBiezen]

Welcome to the channel!

[@777sena]

Thank you so much i was feeling stupid bc i couldn't understand this topic now it's all done 🎉

[@MichelvanBiezen]

Great! Glad you found our videos.

[@777sena]

@@MichelvanBiezen i got 100 from first electromagnetic field theory 1 quiz, there will be 5 more quizes and a final exam. Gonna study for them with your videos!!! 💖💻⚡

[@alaahesham250]

أشكرك شكرا جزيلا ...Thank you so much , this video is just well explained and the effort is so obvious

[@ethanstormemalan2706]

Bravo, I had no idea how to think about solving this problem for phi hat and theta hat. Thank you.

[@monporoshneog4725]

Wow, so nicely explained. Thanks for the video

[@MichelvanBiezen]

Glad you found our videos! 🙂

[@BA_zaem]

thanks very much You are the king of physics

[@qualquan]

Easier to consider unit vectors of angles theta and phi as unit hypotenuses of right triangles. Then by assigning the correct angles within the right triangles we can easily obtain the trigonometric relations which we seek.

[@abelincolnparth]

My calculus text uses theata and phi in the opposite way, and rho for r. It states that the cross product of the rho unit vector with the theata unit vector is the phi unit vector. The results of that calculation maybe a mistake on my part, but works out to be the negative of what your calling the theata unit vector. Like I say, I might be wrong, I am trying to learn this.

[@MichelvanBiezen]

Yes, text books are not consistent when using the symbols and are sometimes reversed. Just use the symbols as represented by the text book.

[@vincentadan8646]

This is a hardcore explanation sir. Thank you so much.

[@MichelvanBiezen]

Glad you liked it.

[@venkatarohitpunyapu8449]

How are the sin and cosine angles being denoted to unit vectors of r, theta and phi in rectangular coordinates ?

[@abelincolnparth]

e sub r = /sqrt(x^2 + y^2 + z^2)

[@chitinousbones9230]

Omg i didnt know this could be explained so easy with just a unit circle labeled with the sin and cosine values

[@MichelvanBiezen]

Glad you liked the video. 🙂

[@mehdifar995]

sir please i need the others vedios ( 36-55 ) ; where could I find them ?

[@MichelvanBiezen]

We still have to make them. (as time permits).

[@qamarhasan1]

@@MichelvanBiezen we are still waiting? Also if we can find about QFT

[@logical614]

Superbbb explanation Sir.... Tqsm...😊

[@joseparedes3765]

The figure really helps to understand . Thank you mate

[@signature445]

sir in rectangular cordinate system the cordinates are x y z, then what is the need of putting x ,y,z in the axis of cylindrical cordinate or spherical cordinate system instead of putting their cordinates (ro,phi and z )

[@dennisasamoah2213]

you are so good. God bless u.

[@hawkfocus]

Sir , in advanced E&M 35th lecture is the last one or u will continue to upload till 55th lecture pls reply me sir , in mathametics calclus TOPIC , equation of lines & angles chapter also have same issue , pls clear me that u may upload in future or that subject is completed

[@MichelvanBiezen]

The plan is to complete many of these playlists, which we are currently doing. It will just take time, lots of time.

[@hawkfocus]

Michel van Biezen ok, thanks a lot for ur service & ur motivating us to become like u........

[@sgiri2012]

Sir, you divided with the magnitude only for r unit vector and the same is not employed for theta and phi unit vectors ? Why sir ? Please explain me sir ?

[@MichelvanBiezen]

That is explained in the new set of "advanced E&M" videos where we go into this in more detail.

[@sgiri2012]

@@MichelvanBiezen where can i find those videos

[@MichelvanBiezen]

You can easily find them from the home page. It is chapter 67.1 in the physics playlists. The first video in the playlist is: Physics Ch 67.1 Advanced E&M: Review Vectors (1 of 113) Addition & Subrtraction of Vectors kzbin.info/www/bejne/rXyXeJZ9pM6FrKM

[@81546mot]

Can not find the 36-55 lessons that are indicated above--could you please tell me where to find them. I would like to watch those, too. Thanks.

[@MichelvanBiezen]

We still have to make those videos.

[@oneforallah]

This is exactly what I was looking for. Thanks a ton. Could anyone tell me where i can find such simplified explanations for taking del operator and laplacian in spherical co-ordinates and converting these between sph rect.

[@anasghaffar7837]

Please make a video on how to find displacement vector, velocity and acceleration in plane polar, spherical and cylindrical coordinate systems

[@MichelvanBiezen]

Take a look at this playlist. PHYSICS 67.1 ADVANCED E&M VECTORS & FIELDS

[@diametricprojection9663]

Sir, what about the lectures next to it?

[@MichelvanBiezen]

We completed a second introductory playlist with over 100 videos in it on those topics. starting with this video: kzbin.info/www/bejne/rXyXeJZ9pM6FrKM

[@diametricprojection9663]

@@MichelvanBiezen I thought that there are some general derivations of those topics,, for example proofs of divergence ,curl in spherical coordinates etc.

[@amandeepluthra1303]

Anything on Semiconductor Electronics, sir? I didn't find anything.

[@MichelvanBiezen]

No, not yet.

[@abhityagi3531]

Try NESO Academy kzbin.info

[@mehmetbakir5583]

Thank you sir for great explanation.

[@raunakashgulati6143]

Amazing video Sir!!!!!

[@sainanuj]

Great tutorial! This helped me. Thank you.

[@kentdelacruz9972]

Very nice Sir!

[@realAhmedAbdElGhany]

that's great work thanks !!!

[@MichelvanBiezen]

Glad you liked it!

[@lordyabo9910]

Great video! but Sir, how does the |r| becomes r?

[@MichelvanBiezen]

In spherical coordinated r can only be positive (in the real world). In mathematics we do consider negative values for r, but not in the real world.

[@lordyabo9910]

@@MichelvanBiezen Ok Sir. But what I meant Sir is when I calculated the magnitude of r or the |r| I get rsin(theta). Here's how I did it r=sqaureroot of (rsin(theta)cos(phi))^2 + (rsin(theta)sin(phi))^2 + (rcos(theta))^2 Then by simplifying, r = rsin(theta)

[@jaimelomayno4152]

Great ellaboration😇

[@husseinghanim4517]

YOU ARE AMAZING EXPLAINER !😍

[@markberardi109]

I was wondering if you have a video in cylindrical coordinates, with cross multiplication in using the cylindrical unit vectors?

[@debendragurung3033]

do we have rest of the series?

[@MichelvanBiezen]

Not yet. We still have to make them.

[@hadim834]

Please can you make them because i really need them asap and thanks

[@gpmahendra7129]

Hi sir, Thanks for your video. I have a concern over the " Unit vector of φ ". Please correct me if I am wrong. φ is the azimuthal angle measured from a reference axis( Here it is X-axis ) to the orthogonal projection of position vector "r" on the reference plane ( Here it is XY-plane). If φ is zero degrees, then the component of φ lies along the X-axis and if φ is 90 degrees, then the component of φ lies along the Y-axis. This is my perception. What you explained is a bit contradicting? Can you just clarify this thing?

[@MichelvanBiezen]

If you draw a circle around the z-axis through the point P, then the phi unit vector will be tangent to the circle pointing in a counterclockwise direction.

[@toppointpk1488]

amazingggggggg siiirrrrrrrrrrr thank you for this brilliant explanation

[@yhosho2890]

what happened to the other 20 videos!!!!? Please Mr. Van Biezen! I'll pray tonight so you can finish this series of videos.

[@MichelvanBiezen]

We still have to make them. We are covering many topics and still have to complete many of them. (we are making them as fast as we can, but we still have our regular jobs)

[@ammess2033]

This is video 35! where is the rest of videos 36 to 55 I cant find them. Anyone can help please.

[@MichelvanBiezen]

We still have to make them.

[@ammess2033]

@@MichelvanBiezen Thank you Michael! I thought I wasn't looking in the right place. Thanks a lot btw for all these video. They got me to 3rd year of my electrical Engg. Bit more to go. I can't thank you enough.

[@soureachsak5027]

Hello Sir, thank for this amazing video, but I do have a question. In rectangular coordinate, vector A ⃗ = Axx ̂+Ayy ̂+Azz ̂ where Ax Ay and Az is the length of the component on x y and axis. However, In Cylinder coordinate, vector A ⃗= Aρ(uρ) ⃗ + A∅(u∅) ⃗ + Az(uz) ⃗ what does Aρ, A∅, and Az represent?

[@MichelvanBiezen]

Those answers can be found in this video: Physics - Advanced E&M: Ch 1 Math Concepts (25 of 55) Cylindrical Coordinates:Point and Unit Vectors

[@soureachsak5027]

@@MichelvanBiezen thank you!

[@MrEzystreet]

Great video, thanks!

[@placecamping]

Can you please show how to calculate r vector in diagram. No mater if you mess a little your nice drawn diagram.

[@brotherstech3901]

Nice video . Thank you

[@juank941012]

excellent explanation. thank you. (how can I make a mathematical or geometrical demonstration)

[@MichelvanBiezen]

As time permits, I'll be posting examples of how to implement these concepts.

[@jaydoubleli]

are there 55 lectures or only 35 in this series?

[@MichelvanBiezen]

Our plan was to complete this series, but we haven't gotten to it yet.

[@maziarghorbani]

Amazing. Thanks

[@diametricprojection9663]

SIR PLEASE COMPLETE THE SERIES OF THESE VIDEOS,,ITS ONLY 35 THERE INSTEAD OF 55 , PLEASE SIR I REQUEST YOU,,I AM A HARD LEARNER OF YOUR LECTURES AND NEVER WANNA TO MISS A SINGLE STUFF

[@diametricprojection9663]

Love from INDIA

[@diametricprojection9663]

If you haven't TIME,then please tell me that from where I can get those del operator derivations like gradient in spherical coordinates, divergence etc.

[@MichelvanBiezen]

We made a second playlist just like it with over 100 videos covering the same material and more. PHYSICS 67.1 ADVANCED E&M VECTORS & FIELDS kzbin.info/www/bejne/rXyXeJZ9pM6FrKM

[@ashishdwivedi9916]

thank u sir ,good and useful content

[@user-vh4jn4vv8e]

Please complete the series

[@jealouseggs5619]

if you are wondering if he has a video on figuring out volume in spherical co-ordinates like I was, here you go: kzbin.info/www/bejne/eoK3ea1vfqZjeZY

[@mikael5743]

Dear professor, we are waiting for the next videos in this series. Thank you

[@MichelvanBiezen]

Yes, we plan to continue as soon as my workload at work reduces.

[@mikael5743]

@@MichelvanBiezen thank you professor!!

[@MuhammadImran-ky3jv]

sir you did not show the mathematical method of finding theta unit vector and phi unit vector?

[@rd0769]

Dear sir, When will there be further lectures? i mean upto 55 as mentioned.?

[@MichelvanBiezen]

My biggest problem is time. I work 3 jobs and don't have enough time to work on the videos as much as I would like. In due time I will try to cover all the topics I can.

[@rd0769]

Michel van Biezen ok that's alright sir :) . but i have something to say , may be just a thought in my mind. Here in India teachers with little knowledge they are earning millions by coaching center, selling hardisks of each courses and you with variety and extreme knowledge have to do 3 Job. May be you love the Jobs you do. Also, it's alright , your videos are to save our time and now we can actually read books. take your time :) thanx. Also there is one more guy AK LECTURES , if you can collaborate maybe it would be less time consuming and and better quality of teaching and variety in subjects. thanx for your time :) , give a look at his site and about me section too.

[@Balaji-uz8kp]

+International Trailers I agree with you. I never liked the methods these coaching centers use. They don't teach you stuff. They just tell you how to answer the questions from their years of experience. But, a lot of ambitious students go to these centers because they don't want to take any chances.

[@AAAAAAAAAAAAAAAAAAAAHH]

Just from eyeballing like that you can guess that it is sinusoidal but not that it is exactly -1*cos(theta). Could be -r*cos(theta) or -cos(2*theta) or any other number of things. This builds intuition but it’s not a very elegant or rigorous proof

[@adjierexafantasy]

i cant find the curl for a spherical coordinates video

[@mustafamunther3693]

u r a super man thank you sir 🌹

[@sln7736]

Please make new videos on this subject

[@MichelvanBiezen]

We would like to, but we are currently covering other topics and we are very limited in time.

[@mujtaba422]

Thank you so much!

[@dogukanozlu8021]

Thanks a lot!

[@deeptotop]

thanks a lot

[@kuldeepsharma6205]

very good but video not looking clearly plz send other video plz

[@humanbeing9731]

many thanks :)

[@rhishabhdeshpande9001]

Thank You Sir!

[@mdmehdihassan5274]

Thank u master

[@Krishkrish-hq8dl]

Sir we are waiting for the upcoming videos in this section. Nearly a year passed. Please consider uploading few videos here soon, sir!

[@BruceLeefromthegrave]

Thank you.

[@hannanafridi1649]

Thank u sir for clearing my understanding 💚💚💚

[@Abhi-jy4ho]

Thanks

[@Sudip01111000]

nice

[@erfanmohagheghian707]

Did someone to force you to upload this video?! You could've prepared better!

[@fawal.1997]

applause.

[@urfan7850]

Thank you so much,Sir

[@nature_lovers237]

Thanks a lot