@@mapi5933 To the copper and aluminum on the magnet, since it is moving with the magnet, the magnetic field will be stationary and have no effect on the copper or aluminum attached to the magnet.
thank you for explaining this so well, and how it works on a flat piece of metal and not just a magnet goin through a pipe. I was trying to understand how the spinning magnet in a pedometer causes the needle to move, and now it makes sense!!
Great presentation. I have seen this done with a copper bar, the effect was more pronounced. Is that due to Cu having more free electrons than aluminium? Thanks and cheers.
Thanks, yes copper is more conductive, so larger eddy currents hence larger magnetic field produced. I didn't have an equivalent piece of copper available.
With electromagnetic induction you can get very dangerous sparks, ruclips.net/video/iVbNGJX88gc/видео.html I'm sure you can generate large enough eddy currents that you could get a dangerous current if you touched the metal. I'll have to think about if there is a way to demonstrate a spark.
Wherever there is a changing magnetic field an electric field is generated. As the aluminum volume decreases, more and more of the electric field that is being generated is in the space outside the aluminum, so less current generated in the aluminum.
@@electricandmagneticfields2314 Thank you so much for your reply. However, I am still confused. Let's say that the length (how tall the metal plate is) and width (how wide the metal plate is when facing a side with the most area) stays the same. But the thickness of the plate changes. You could say that the "surface area" stays the same but the thickness alters. Would that affect the eddy current?
your magnstic field from currents are wrong??? right hand grip rule states your FINGERS are direcyin of nagnetic field and thumb is current. although theres the same poles just different orientation
If you have a loop of current flowing in the counter clockwise direction, inside the loop the magnetic field will be coming towards you. ruclips.net/video/FLWgm_j0XZc/видео.html
Dear Sir,
This is the best video I have ever seen on Eddy Current.
Thank you very much.
You are most welcome!
i can see it more clearly now, thanks professor!
Thank you, a most excellent presentation. Edit: this is the only correct explaination in all the vids i watched.
Brilliant. I saw many explanations and didnt get it clear till i saw this. Tx!
Glad that the explanation clear, it is good to hear.
@@electricandmagneticfields2314 What if you glued copper or aluminium plate on top of the magnet when it slides on aluminum?
@@mapi5933 To the copper and aluminum on the magnet, since it is moving with the magnet, the magnetic field will be stationary and have no effect on the copper or aluminum attached to the magnet.
@@electricandmagneticfields2314 this video is for the students of which year age?
@@krushalrabari976 For a junior level course I teach at Purdue, but I think high school students should be able to follow many of the demo videos
omg, this is the best explanation I have ever seen, thank you!
Great demonstration.
thank you for explaining this so well, and how it works on a flat piece of metal and not just a magnet goin through a pipe. I was trying to understand how the spinning magnet in a pedometer causes the needle to move, and now it makes sense!!
Sir your ecplenation was the best of them all, thank you so much
Marvelous video about eddy current!!!!
This explanation is best ever
amazing explanation sir .after wasting a lot of time on youtube to learn it i got your recommendation and it made my day
Glad you found it helpful!
Very well explained! 👍
Thank you for this. Very clear illustration.
Very Nice and crystal clear explanation. Thank you professor for your time and effort
sir, i wish you were my tutor. Very helpful video, thank you very much
Thanks a lot sir this us the best video for eddy current
You are welcome!
Thanks for such a great explanation
thanks for the explanation - nice job!
I am from Egypt ..thanks to your explain
You are welcome!
excellent Video and explanation!!!
Thank you!
Thanks a lot sir love from India
You are welcome!
Thank you so much sir. Great explanation!
Thank you for saying that!
this saved my life thank you so much
You are welcome!
Great explanation 👍
Amazing explanation and really useful knowledge!
Excellent lecture 🙏🙏🙏🙏
Thank you!
it gave the clear picture.thank you
Good video!
Thank you!
Thank you so much!!
Love you professor
Wow crystal clear
Thank you, sir. Really it helped me much.
thank you sir,
very nice explanation.
Great presentation. I have seen this done with a copper bar, the effect was more pronounced. Is that due to Cu having more free electrons than aluminium? Thanks and cheers.
Thanks, yes copper is more conductive, so larger eddy currents hence larger magnetic field produced. I didn't have an equivalent piece of copper available.
Easy to imagine. Thanks
Thank you Sir! ❤️
with enough eddy current induced could you be shocked by touching the material ?
With electromagnetic induction you can get very dangerous sparks, ruclips.net/video/iVbNGJX88gc/видео.html
I'm sure you can generate large enough eddy currents that you could get a dangerous current if you touched the metal. I'll have to think about if there is a way to demonstrate a spark.
Would the volume of the aluminium plate affect the strength of the eddy current?
Wherever there is a changing magnetic field an electric field is generated. As the aluminum volume decreases, more and more of the electric field that is being generated is in the space outside the aluminum, so less current generated in the aluminum.
@@electricandmagneticfields2314 Thank you so much for your reply. However, I am still confused. Let's say that the length (how tall the metal plate is) and width (how wide the metal plate is when facing a side with the most area) stays the same. But the thickness of the plate changes. You could say that the "surface area" stays the same but the thickness alters. Would that affect the eddy current?
@@breadedchicken1105 Yes, because the magnetic field would extend past the thickness of the aluminum.
Thank you sir
Thank you
Pwoli... 👍
your magnstic field from currents are wrong??? right hand grip rule states your FINGERS are direcyin of nagnetic field and thumb is current. although theres the same poles just different orientation
If you have a loop of current flowing in the counter clockwise direction, inside the loop the magnetic field will be coming towards you. ruclips.net/video/FLWgm_j0XZc/видео.html
legend
Thank you!
Looking for the best explanation of how an Eddy current is produced? You’ve found it here.
Thank you for your kind words!
Density and Buoyancy, Gravity is theory only.
not any more