Michael, thank you so much for posting these videos. These will be a resource for so many students. And your work here is cemented into history. This is the most comprehensive set of examples and derivations I have found. I salute you.
Michel, your examples are awesome and so are you. You help many people like myself understand and compute higher level physics which is extremely important in my area of study. Thank you again. You will not go unnoticed because I will spread you channel.
Shouldn't dBy be dBz and dBx be dBy. And shouldn't the crossproduct between dl = (dx, 0, 0) and r-hat = (cos phi, sin phi, z0)? Which gives a dB in terms of dBz and dBy.
@@MichelvanBiezenHello sir. First, I must say I love all your videos... I literally copy everything down in my notebooks that you teach, but I'm lost on the dB(x) direction pointing in the same direction as y(o) and dB(y) pointing in the direction of z(o)... You already defined R = sqrt(y^2 + z^2), meaning an x-component cannot point either up or to the side, yet dB(x) is pointing in the direction as either y(o) or z(o)... If you could explain this I'd greatly appreciate it! Thanks
Actually it is not the y-component, but the component perpendicular to the r vector. And that is because the magnetic field makes a circular path around a current carrying wire.
@@MichelvanBiezen So we know which direction the B field will be pointing at that location (right-hand rule) and that is why we only compute the component perpendicular to the r vector?
@@MichelvanBiezen but in your drawing By isn't perpendicular to the r vector, should we calculate both by and bx and then find then norm of that ? thanks
Michael, thank you so much for posting these videos. These will be a resource for so many students. And your work here is cemented into history. This is the most comprehensive set of examples and derivations I have found. I salute you.
Michel, your examples are awesome and so are you. You help many people like myself understand and compute higher level physics which is extremely important in my area of study. Thank you again. You will not go unnoticed because I will spread you channel.
Keith,
Thanks for the feedback. It is good to know that students all over are benefiting from these videos.
i recommend your teaching to my chem.eng students
Thank you for the recommendation
the whole dBy cos(theata) as opposed to sin(theta) was tricky as heck for me to get the hang of, but otherwise a good video as always.
Direction of db should be perpendicular to both dl and r right. But here it does not seems so
It is hard to visualize it, but dB is perpendicular.
Shouldn't dBy be dBz and dBx be dBy. And shouldn't the crossproduct between dl = (dx, 0, 0) and r-hat = (cos phi, sin phi, z0)? Which gives a dB in terms of dBz and dBy.
The video is fine as is. Thank you for checking.
@@MichelvanBiezenHello sir. First, I must say I love all your videos... I literally copy everything down in my notebooks that you teach, but I'm lost on the dB(x) direction pointing in the same direction as y(o) and dB(y) pointing in the direction of z(o)... You already defined R = sqrt(y^2 + z^2), meaning an x-component cannot point either up or to the side, yet dB(x) is pointing in the direction as either y(o) or z(o)... If you could explain this I'd greatly appreciate it! Thanks
why dont we want the x component of the magnetic field at that point? why only the y component?
Actually it is not the y-component, but the component perpendicular to the r vector. And that is because the magnetic field makes a circular path around a current carrying wire.
@@MichelvanBiezen So we know which direction the B field will be pointing at that location (right-hand rule) and that is why we only compute the component perpendicular to the r vector?
@@MichelvanBiezen but in your drawing By isn't perpendicular to the r vector, should we calculate both by and bx and then find then norm of that ? thanks
THX
You are welcome. 🙂
As you mentioned here y component same should go with y component in this video also
ua-cam.com/video/froA_4AooCA/v-deo.html
But it was not so
Zero