Motional EMF and Application of Faraday's Law

[@FirstLast-ur6xt]

"You gotta believe" that brought a tear to my eye :*)

[@mariofizz13]

Wow, so many good things in this video. When you said 'how do we find ds/dt?' and that just turned into velocity, I was just like :O

[@nihallatheef4872]

And what was that??..! I wanted to learn about solar system and you taught me the entire UNIVERSE! Thanks Champ! Keep Posting :) :D

[@93Fiddler]

Much better explanation than my textbook.

[@fantasticmrbond]

Your videos have illuminated several aspects of the physical world for me sir! You are a phenomenal teacher.

[@ayoolajohn]

You gotta Believe !!!

[@yueli2146]

This is the greatest video on the Internet

[@atmonotes]

what about work done to push the rod some distance to the right? just F times distance?

[@amritrai6956]

why is it -Blv? in class we had +Blv, does it have to do with the direction of the magnetic field?

[@Mightyzinger1]

The negative is because it applies lenzes law

[@zeustheboerboel3794]

minus determines the direction of emf. You can find it using common sense or with the help of the negative sign

[@oscarpesantes6342]

My textbook… almost every university textbook said that the motional emf=Blv not negative Blv. Your derivative makes sense but I’m confused for how inconsistent the equations are. Are you representing the induced motional emf or motions emf? I hope you read this to clarify my confusion.

[@nati22]

ya gotta believe! i wont forget that for my midterm tomorrow!!

[@atharvas4399]

At 4.00, shouldn't s be expressed as v.t ? as the distance s is increasing due to the velocity of the bar? In what cases should we use instantaneous distances and in what cases should we plug s= s0 + v.t ?

[@cchadwickgograngers]

This is incredibly useful. Thank you!

[@MATHBOSS287]

is this related to relativity? and the fact that moving objects tend to talk up more space when they are moving than when they are at rest

[@estefaniafernandez3009]

Thank you sooo much! This is like physics for dummies and it is awesome :D

[@sanghamitradas9437]

Thank you so much! :') Thank God I found these videos! You're amazing.

[@mvijay4203]

I didn't expect an indian here . Honestly lol

[@4thKyuubi]

This was placed Ina. Uniform magnetic field that is coming ou to fit eboard right?

[@vernaaquino8073]

wow..how you derived it made so much sense

[@tonymac96]

I thought to learn a little bit about generators....but I got hook !!! Wow very good presentation sir !!!! Keep the good work !!! Saludos desde Puerto Rico !!!

[@nubsmacker]

Thank you so much for these videos! They are extremely helpful.

[@nuhriko]

sir lasseviren1 , since the current was initially derived to be negative, should the current at around 8:00 be negative as well? thank you! I did not understand much from my electromagnetics class when I was in college and it is only now through your videos that I understand the subject. thank you so much for your videos! :)

[@NvVortex]

Super late reply, but hopefully this can help other who see this comment with a similar question. Yes the negative should be carried over, this should also make conceptual sense since it is in the "negative direction" albeit arbitrary but since "v" is positive and rightward it hence implies the other direction is negative. Therefore, yes the force should be negative, however he did not seem to take into account the vector properties of force so he was likely solely solving for magnitude of the force.

[@AdnanAli-bt8zv]

God! Our text need to have link of this vedio. Absolutely it is stunning. Thankfully I found on night of physics paper.

[@chetangupta6029]

Hi....awesome job....i jst wanted to ask why have u taken angle b/w area vector and mag. field 0 and not 180 since mag. field is directed inward and dir. of area vector is taken to be normal outward...plz explain

[@ashishchauhan2335]

When the area is open area vector can be taken both sides as per convinience

[@urvitandel4452]

does emf depends on cross section

[@subhamking2430]

can u explain how to find polarity of that induced emf on that wire

[@BuffPomsky]

subham king where emf points is higher voltage

[@yunafortilla]

woah thank you! You taught so many things that encompassed this topic! Thank you miracle man!

[@sline123]

thank you! i have a test tomorrow but i fell asleep for the last few days.

[@serden8804]

what kind of s is that ? I appreciate your videos extremely.

[@Janmejoyslg]

Very helpful video. But the presentation style of the toroid video is better.

[@erithug]

you are amazing.... You are the physics of patrickjmt

[@tashfix]

excellent video! I have a final tomorrow!

[@ihave3heads]

FINALLY SOMEONE HAS EXPLAINED WHAT IT MEANS TO "BRING BACK THE FLUX" IN SUMMARY - IF THE B FIELD IS PRODUCING X (INTO THE PAGE) INSIDE THE LOOP YOU GET DOTS (OUT OF THE PAGE)

[@brendawilliams8062]

Now if you could beam that down with gps. We’d both be happy. Lol

[@凛-r3h]

Current counterclockwise 1:33 why Openstax Ch 13-14

[@lasseviren1]

I am using "conventional current" as the flow of positive charges. If you are using current as the flow of electrons, which it actually is, then electrons travel around the circuit in a clockwise direction. If we use conventional current then the right-hand rule would indicate the forces on the positive charges are upward in the moving bar.

[@BringinglT]

loving every minute of it

[@amelabr]

Great explanation. Thank you.

[@John-jw5pr]

great explanation!

[@omareafoe4850]

I actually was hopping to see the general form of motion.emf

[@thesuperwoodwinder]

believe! (in getting a better grade in physics)

[@michaellamoreaux4402]

The emf is due to the motion of the slider through the magnetic field and is not due to the changing flux linking the loop. Faraday's Law states just the opposite and is therefore not a law but just math. It is a case of correlation, not causation.

[@mirellac7135]

Very helpful. Thank you!

[@joshuamulleady63]

excellent video!!! thank you

[@techfutureproof]

great video man, cheers.

[@surendrakverma555]

Excellent 🙏🙏🙏🙏

[@tlhomotsemoteme2423]

Thank you so much! 😜Everybody leave a thumbs up coz this man is really great in his field!!!🤣😂

[@harveenkaur4684]

Very helpful! thanks!

[@AnimeRenegades]

Why is N=1 tho?

[@jlluo5234]

1 loop

[@DavindraPooran]

This video is gold

[@jitendrakumar-ow4nx]

Thanks sir ji

[@zuhairalsaffar7001]

Sir l like to thank you so much you are owsom

[@PhilV205]

I love this man

[@rkbuddha1040]

excellent......

[@kausarhussain931]

i got it,thanks sir

[@fahriali3041]

F=I LxB =I L B sin(theta). in this case theta is 90 degrees so sin(90)= 1. that's why F= I L B

[@mazphamm]

God bless you

[@ATrekafied]

I want to be in your classroom :'( take me with you!

[@brendawilliams8062]

Thx.

[@05032885741]

I think You have made a mistake with the direction of the current as it was pointing inside so it is supposed to go clockwise .. Right hand rule .. lasseviren1

[@SM_Price]

+noorr The direction of the current is determined by the direction of the induced magnetic field, and because B is increasing into the page, the induced magnetic field would oppose this.. out of the page. The right hand rule of this induced field would then determine current.

[@05032885741]

+S. M. Price Oh okay , i honestly forgot about this topic lol , thank you anyways sir.

[@bluegrapes2010]

I LOVE YOU! This is amazing!!!

[@wadeeaalhadi5349]

thanks a lot :)

[@jessechen4971]

this x1000000000000000 there is also this other guy that's really great w/ the pony tail

[@leoncio91]

NIIICEEEE

[@ROFLStudios]

[@supmrdude8]

"I gotta believe" I can actually pull off a 5 self studying Physics C lol

[@MultiCoolman125]

Hey did you succeed? I'm doing the same

[@MultiCoolman125]

​@William Han Sort of. I didn't succeed on the goal of getting a 5 on both; I got a 5 on Mechanics and a 4 on E&M due to some stupid errors. But all in all, I did succeed because I am getting credit for both at my university and I am happy with that.

[@MultiCoolman125]

​@William Han Thanks! These videos are really helpful, just watch all of them and make sure to do some practice tests, and you should be good. The test isn't that hard if you know all the concepts but the time pressure on the multiple choice was kinda tricky at least for me so make sure to do plenty of practice! Good luck on your AP Exam and I hope you do really well!

[@Fighterftwful]

Lol.. Got to blv Genius

[@dtopaloglou]

looooool

[@abhishansapoonia800]

Hmmm Americans are not so dumb. 😂