@@user-th8pr7no5p the one cancelling out is the one for half a loop of wire whose distance would be pi*R but the one for a wire bent through angle theta only has a distance R*theta in radians hence there is no pi to be cancelled out meaning the magnitude of B would be (mu*I*theta in radians)/4*pi*R
You are probably the most helpful physics topic reviewer I have ever watched. More than Organic Chemistry tutor because you really help us to solve all kinds of problems while explaining concepts very well. Please make many many more videos like this!
My guy, I'm about to get in the physics 2 final that I failed last year. This and the amperes law videos helped a lot so if I pass its all thanks to you
Taking Physics 2 at university rn and your videos are incredible. Discovered you through Gauss's law and you have never disappointed since. You got nothing on The Organic Chemistry Tutor. We Are Showboat is my go-to for physics help. Incredible job
I have been confused the whole time on how to do those integrals, and I always skipped your video because I assumed "review" meant not enough explanations. So far, It is the first time I truly understand how to deal with these problems and I can't thank you enough !!!
Fantastic video with great examples and explanation! Especially with the last loop of current problem having that 3-D visualization made everything a lot more tangible.
Thank you so much for this vid!! I struggled with this concept for so long and it feels like you've cleared it up for me. Also, you sound like Owen Wilson which was a nice surprise :)
The AP Physics E&M exam is today in a few hours. I was freaking out the first few periods of school and since I was excused I left early to study and to calm down. I’ve been watching your videos since this morning for a quick review and you’re amazing at explaining the topics in quick and easy to digest ways! Some things are finally starting to click! I don’t know if I’m still gonna get higher than a 1 or 2 as it’s been a rough year calculus-wise since I’m only in pre-calc so you can imagine how some things were difficult to pick up, but at the moment, these videos are easy to follow along to and give me some hope. Thank you so much for taking time to make these💖
wow thank you so much, i never really understood the biot savart law but now i do. you explained it so easy and showed many examples, just amazing dude!!
This was so useful in finally understanding what the cross product in the biot-savart law means. Also saying not to use the biot-savart law to find direction was funny but also super useful in understanding it.
1:52 In the actual documents, the formula is 'mu only' which implies that the magnetic permeability of that medium whereas you have given here 'mu nought'. So, to keep that fact in mind they didn't removed the mu.
0:40 I think if you are considering the cross product between dL and r, then the denominator should be r cubes, if it were a simple multiplication sign, then sin theta is ommited, either way. Being a student, I might be wrong, kindly correct me, if I am at fault.
It’s between Dallas and r hat. R hat has magnitude 1. If I wrote it as dL cross r then yes you’d write it as r cubed in the denominator. I’m pretty sure I talk about this in the video though, maybe not
Great video! At 6:55, though, I believe the resultant magnetic field due to the current is drawn in the wrong direction. If the current is pointing to the right, by the RHR, the magnetic field should curl in a circle towards us rather than away from us as shown in the video. (Unless I misunderstood what the arrows were representing)
B field at the center of loop wire bent through angle theta should be mu I theta over 4 PI R, you omitted the pi
Arghh. You’re right. Good call!!! Thanks
.
doesnt the pi cancel out at 14:16
@@user-th8pr7no5p the one cancelling out is the one for half a loop of wire whose distance would be pi*R but the one for a wire bent through angle theta only has a distance R*theta in radians hence there is no pi to be cancelled out meaning the magnitude of B would be (mu*I*theta in radians)/4*pi*R
I was just about to comment on the same thing! I was like, "where did the pi go?!?" lol
You are probably the most helpful physics topic reviewer I have ever watched. More than Organic Chemistry tutor because you really help us to solve all kinds of problems while explaining concepts very well. Please make many many more videos like this!
Wow, that’s high praise. OChem tutor is legendary. Thanks man. Maybe I should buckle down and make an actually complete catalog of videos.
I agree, this video and the Gauss's law one were immensely helpful!
@@WeAreShowboat the gauss law video is the best on the internet hands down!
thanks a lot man
My guy, I'm about to get in the physics 2 final that I failed last year. This and the amperes law videos helped a lot so if I pass its all thanks to you
How'd it go? Mine's tomorrow!
Taking Physics 2 at university rn and your videos are incredible. Discovered you through Gauss's law and you have never disappointed since. You got nothing on The Organic Chemistry Tutor. We Are Showboat is my go-to for physics help. Incredible job
TOCT and WASB collab would be CRAZY
The man the myth the physics legend himself....
I have been confused the whole time on how to do those integrals, and I always skipped your video because I assumed "review" meant not enough explanations. So far, It is the first time I truly understand how to deal with these problems and I can't thank you enough !!!
This was such an excellent video covering something that I initially found complicated when I first came across it. Many many thanks!!
u guys single handedly save my physics grade i love this channel so much
Fantastic video with great examples and explanation! Especially with the last loop of current problem having that 3-D visualization made everything a lot more tangible.
I’ve a final tomorrow and I swear I’ve learnt so much from this video.. I’ll cry, thanks 😭❤
Dude, this is legendary! Keep up the good work! 🔥
Thank you so much for this vid!! I struggled with this concept for so long and it feels like you've cleared it up for me. Also, you sound like Owen Wilson which was a nice surprise :)
The AP Physics E&M exam is today in a few hours. I was freaking out the first few periods of school and since I was excused I left early to study and to calm down. I’ve been watching your videos since this morning for a quick review and you’re amazing at explaining the topics in quick and easy to digest ways! Some things are finally starting to click! I don’t know if I’m still gonna get higher than a 1 or 2 as it’s been a rough year calculus-wise since I’m only in pre-calc so you can imagine how some things were difficult to pick up, but at the moment, these videos are easy to follow along to and give me some hope. Thank you so much for taking time to make these💖
I’m one year late but how did it go? 😅
I’m curious too, not being in calc 2 is wild. How’d it go??
Super instructive and helpful. Helped me understand some stuff I wasn't grasping in my physics 2000 uni lecture. keep it up!
Thank you so much for this video! I love how you calm us viewers down when teaching the concepts 😅
Wow sir after a long time.....I love your videos so much ...thank you 🙏
wow thank you so much, i never really understood the biot savart law but now i do. you explained it so easy and showed many examples, just amazing dude!!
this channel is the only reason I understand E&M
BRO I LOVE YOUR STUFF, SO GOOD. ACTUALLY CARRYING MY PHYSICS C GRADE
This was so useful in finally understanding what the cross product in the biot-savart law means. Also saying not to use the biot-savart law to find direction was funny but also super useful in understanding it.
amazing video - 2nd year college student in intro to E&M
This is an amazing video man keep going
Thank you so much for this video! You're a talented educator and I have subscribed
Amazing insights!!
Thank you for this video.
Thanks for the clear explnation this helped alot ❤
I'm watching this half an hour before my exam
I love the internet for videos like this
Thank you for this video!
awesome vid, very good explanation
Great Teacher. Keep it up. Thanks
muy bien explicado bro, muchas gracias
so helpful! Thanks so much!
Man, this is the shit. I really thank you
thank you so much this is amazing
your teaching is very good
excellent videos
Love u man
Great video, Thx!
Excelent explaining
This was Hella helpful
epic video thankyou
Thanks man!!
thanks again :)
thank you so much
Grate to understand😉
Nice job.
The Goat
Beams!!!
you are perfect!
Ohh at 21:11 clip the sine of the supplementry angle is the same because sin(180°-theta)=sin(theta).
Good concept review but using numbers to put in a question circumstance would be helpful
1:52
In the actual documents, the formula is 'mu only' which implies that the magnetic permeability of that medium whereas you have given here 'mu nought'. So, to keep that fact in mind they didn't removed the mu.
Thank you!
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i love you so much
0:40 I think if you are considering the cross product between dL and r, then the denominator should be r cubes, if it were a simple multiplication sign, then sin theta is ommited, either way. Being a student, I might be wrong, kindly correct me, if I am at fault.
It’s between Dallas and r hat. R hat has magnitude 1. If I wrote it as dL cross r then yes you’d write it as r cubed in the denominator. I’m pretty sure I talk about this in the video though, maybe not
Great video! At 6:55, though, I believe the resultant magnetic field due to the current is drawn in the wrong direction. If the current is pointing to the right, by the RHR, the magnetic field should curl in a circle towards us rather than away from us as shown in the video. (Unless I misunderstood what the arrows were representing)
It does point toward us in the video. Maybe the perspective looked weird?
@@DavidSantoPietro you're right, it was perspective that got me. I see it now
hi love the video but im just wondering why at 15:19 does the pi also get canceled out ?
That was a typo. There’s a pinned comment about it. My bad.
@@WeAreShowboat np i have another question around 23:02 how did u get the equation on the bottom left ? I'm very new to calc but still have no clue
Can you do Ampere's Law for the last problem?
Thank you for your help!
I don't think so. Ampere's law would be difficult due to a lack of needed symmetry in the problem.
I think all the dB you draw for the last example have the wrong direction. But it does not affect the final answer tho.
My professor straight up gave us a disk that spins and told us to find the B field at Z axis!
Or and the disk spins because current wasn’t given.
That’s going to be a bunch of rings. Take the ring formula and integrate outward
Upload videos gravitation, mechanical properties of solids , mechanical properties of fluids.
why no one questions about the beta should be the angle between dl and r? not the angle between r and the axis??
can't you just use ampere's law for infinitely long wire? (assuming current is constant)
Yes, Biot Savart is not always the easiest solution
i love you
Hii could you make a video on earth's magnetic field & magnetic dip angle??
It always confuses me!
is the electric field parallel to the current?
In the wire yes, current flows in the direction of the electric field
15:15 why does the pi disappear in the final answer?
nvm i saw another comment that addressed this :)
in which direction does force point to?
You have to use a right hand rule to find the direction of magnetic force
Where can I get your lecture notes
Click on “more” under the video. There’s a link
what is the program used at 5:00?
Geogebra 3d
@@WeAreShowboat Thank you!
aren't you the guy from Khan Academy ?
Yup