Electromagnetic Induction
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- čas přidán 4. 01. 2015
- 071 - Electromagnetic Induction
In this video Paul Andersen explains how electromagnetic induction occurs when the magnetic flux of an object changes. The magnetic flux is product of the surface area perpendicular to the magnetic field and the magnetic field strength. Microphones and generators are examples of devices that utilize electromagnetic induction.
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Artist: Herman Jolly
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All of the images are licensed under creative commons and public domain licensing:
Bach, Eviatar. English: Faraday’s Experiment to Try to Induce a Current from a Magnetic Field, with a Battery on the Left, an Iron Ring in the Centre, and a Galvanometer on the Right. This Diagram Is Based on One Found in Page 263 of Physics: Principles with Applications, Fifth Edition, Author Douglas C. Giancoli, Illustrators Patrice Van Acker and Tamara Newnam Cavallo. The Explanation in the Book Reads as Follows, with the Left Coil Being X and the Right Coil Y:, September 20, 2011. Own work. commons.wikimedia.org/wiki/Fil....
“Faraday’s Electromagnetic Lab.” PhET. Accessed December 8, 2014. phet.colorado.edu/en/simulatio....
“File:Hans Christian Ørsted Som Ung.jpg.” Wikipedia, the Free Encyclopedia. Accessed May 28, 2014. en.wikipedia.org/wiki/File:Han....
“File:Oersted Experiment.png.” Wikipedia, the Free Encyclopedia. Accessed May 28, 2014. en.wikipedia.org/wiki/File:Oer....
“Michael Faraday.” Wikipedia, the Free Encyclopedia, December 5, 2014. en.wikipedia.org/w/index.php?t....
When you get a better explanation from a free 8 minute video online, than from a 1 hour lecture that I need to pay for.
One of the best sources to cram before finals tomorrow
Or maybe, due to lack of interest and repetition of studying to the same teacher you take it for granted that he/she can't explain.
@@samirumair4548 Always funny seeing randos online try to assume who you are and how you act or think.
@@kurimiaisukurimu My assumption is an ambitious one yes, but lacklusters like you are a common encounter. Good job liking your own comment as well, cheers dimwit.
just glad i didn't have to pay ...but i learned
man i wish i had a teacher like you
i know right!
same here
Brodie Fenner true
gaf oh woops said it backwards
Ya I agree with you .
Been studying this for a week straight now and this is the first time it’s made sense! Thank you!
Dear Mr Andersen, you have single-handedly saved me from the embarrassment of failing my A-Level Physics. Thank you very much!
Spent hours looking for a cogent explanation for this. You're killing it buddy. Thanks so much.
I love those animations. They are so intuitive. I wish I had this when I was in middle school!
I am your friend from Iraq, you deserve the word of a world and deserve to have 10m shared, I love you, my friend
You literally got me interested in this and i am already doing a 2 hour research to understand the many implications of this phenomenon. Really, amazing job!
Thank you, Mr. Andersen. This video is exactly what I was looking for.
5 years later and Im always coming back to bozeman for an in depth and clear review of things I forgot 👌
Thank you, it helped a lot. I intend to watch your other videos too. Take care and keep up these awesome videos :)
This is an 8 minute video. The classes I take are 45 minutes. I easily understood what was happening in the video, but in school my teacher just says a bunch of unrelated things, and expects us to get it. Thank you so much!
So much thought was put in to the animations. I really liked what you came up with for the field. Thanks
Very professional,calm and ponctual, thank you so much for this great explanation.
Genuinely really helpful. From someone with a Principles of Electrical Science exam in a few days time
wow, very well demonstrated and helpful!!! the best video around the world
Great video, it's been a long time since AP physics and I needed the refresher
Thank you very much Mr Andersen! The explanation was short and very helpful! I wish I had a teacher like you! Keep up the good work!
Thank you Mr.Andersen for making me motivated to physics
I wish my science teacher was you...
This was so helpful, I love the way you breakdown the concept into lay man's understanding
I love this video..I now understand what I don't in those past years..thank you.
Mr. Andersen + Doc Schuster = Awesome teaching!
Thank you Mr. Andersen for this fantastic lecture.
This video alone made me understand magnetic flux and its relevance to induction and current really easily. Thank you sir.
I love this lecture, thank you, Paul Andersen.
*Only 18* 👇👇👇
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it was a bit hard to fathom in the begining, however it became a lot clearer with the visuals in the last minutes of the video thank you so much and good luck
Thank You A Million At Least !!!!
That Was Most Helpful ^^
excellent explanation! I am currently learning marine boat systems and your video was so handy, explaining the complex subject in simple, concise, precise manner - the things better than a school teacher.
I understand this and thank you. but I was left with this question. Your rotating magnet in the last example does not go through the wires; it is only next to it. What happened to the coil- magnet perpendicularity relationship? Isn't this a very inefficient way to generate electricity?
I need teachers like you sir
Great video, already with my favorites !
Thank you !
Can't get a better explanation than this.
New semester begin, willing to get some preview here XD, Thanks for your work
I wish I had teachers like you in university! It was so difficult to us to understand without finding a good teacher , also youtube then wasn't available
This is the best explanation of induction I’ve seen.
Are you kidding mr this was the best video I watched. This was very helpful! Thank you!
Would you do a video explaining ac frequency? Why there is 60 hertz.
Thanks.
You are explaining so much better I wish I had a teacher like you. You are incredible thankyou.
great video! simple and easy to understand
I did understand and I really like your videos, they have been so helpful since I discovered
Another amazing video. Thank you so much for this!
very good explanation with excellent diagrammatic animation.
Great talk, great visuals. Thanks!
never seen better teacher than you
Thank you Mr. Andersen!
you have just clear my concepts sir,
Great exposition! Wonderfully explained!
That was really awesome explain .. I really now understands the idea of how it works .. thx bro
excellent use of google slides as lecture material. incredibly helpful insights
This video set off a lot of light bulbs in my head. Thanks for sharing this. I didn't understand why there was only current when the objects were in motion until the magnetic field pointers were shown in the background. The polarity of the object moved through the coils causes the electrons in the coils to move around and re-order themselves, which creates current in the coils. Thus, at any point if you stopped moving the object, the electrons in the coils would have no reason to move, therefor creating zero current. Am I understanding this correctly? This electricity shit is blowing my mind. And the fact that there is this "conventional" and "reality" way of describing what is happening in the circuits doesn't help me one bit to understand. Some professors will say "as the positive charges moves", others will say "as the electrons flow"....jesus christ make up your damn mind so I can understand! ... ok sorry ranting now lol, back to learning physics. Great video!
Same for me! electricity and magnetism have always felt overwhelming
subjects for me but at least now I think I understood something
critical.
Thanks a lot for this comment. This really helped me understand it.
Preach bro😂
Beautifully explained!
Amazing video, extremely comprehensive.
Just a few minutes ago, I did not understand this concept at all but after watching this, I'd say I'm a bit more knowledgeable about it now. thank you sir!
Thank you Mr. Anderson!
Thanks a lot Mr.Anderson. that was definitely helpful
Awesome content. Right to the point.
I completely understood this. Wow. I have been so lost all semester I’m stunned.
Hi There. Thank You for this great exlanation, absolutely amazing. May God bless you.
Magnificant explanation 👑💯
wonderfully explained thank you for sharing this
coming in clutch for all of us stuck taking physics in pandemic online classes with professors that have no communication skills at all. it's either the easiest or the hardest stuff to learn depending on who teaches it and how in my opinion
great presentation, why are we not using more of this?
It's the ideal teacher. When I watched the exact same topic from my University professor the quality was 10 times worse than this one. I'm really happy I have CZcams :)
Great video! Very simple explanation.
Absolutely fabulous!
You are an example of an ideal teacher.
Excellent! Thank you!
thanks alot mr you made my day by that simple explanation :)
This was very helpful. Thank you so much!
WOW sir !
You've made an AWESOME video !
that was such a good lesson
very insightful. Thanks.
Was indeed helpful, thank you.
Great explanations . Thanks a lot
this was really helpful, thanks!!
Brilliant video!
Man you are super good teacher!
Thank you
This explained a lot, so only change in magnetic flux matters. This stuff is mindblowing, we are creating electricity literally out of nowhere, just with plain movement force of magnet through the magnetic fields created in coils. Whole idea is crazy but works.
your explanations are th best.. thank you sir.. I understand from you so easily 😃❤
That was the most helpful video I have seen today
Hello, i still have questions about how we are supposed to harvest this electrical current if the entire circuit needs to be switched on and off in reapect to the magnetic flux change? What kind of switching armature do you have in mind?do you use a physical switch or a rectifier type of conponent?
Learning that in the context of TMS for psychology and it was really helpful
The world's best teacher thanks sir
Extremely Helpful. I am going to use this for one of my chargers for my phone
That was so helpful Thank you !!
It was well explained, thank you from France !
Interesting use of graphics. I am curious about something.
This demonstration shows induction in an inertial reference frame, such as a table top in a laboratory. What if the entire system were accelerating, or in zero-g? Would there be slightly different behaviour of the needle on the galvanometer?
thank you sir Andersen!
thanks for the explanation it helped a lot
Instant like and subscribe! Excellent animation. Superb video.
Man you're awesome!
PERFECT video.
Thank you very much! That cleared alot of my misunderstanding!!
Brilliant video. Thanks a lot!
Just wanted to say, I wouldn’t have been able to graduate with a 3.9 gpa as a health science major without your help man. Your fucking awesome bro
thank you so much great explanation
Thanks.
Sir, which software do you use for developing these lectures?
I was about to buy a wireless charger, and somehow, it led me to your video.
Will come back, definitly.
I understood the concept.Thanks for the video sir
How can I fine how much current the inductor push out