Drift Velocity, Current Density, Number of Free Electrons Per Cubic Meter Physics Problems

[@TheOrganicChemistryTutor]

Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Math & Science Videos: www.patreon.com/mathsciencetutor/collections

[@stephencastillo]

Literally the hardest topic right now , im not even one month into AS level

[@bfex1443]

Same man 💀

[@TheKIngKiller21]

For example #5, shouldn't you have used 2.5 mm for the radius instead of the 5 mm value for the diameter of the wire?

[@alluseplatform6324]

Yeah he made a tiny mistake

[@mosesdanielshihepo63]

I agreed with you

[@MrBoholanongRealtor]

Yes . I notice . But it just an error .💕

[@josephr7753]

I noticed that as well

[@ayo94563]

Story time. I just wrote my physics CA test (A level) and the first question was to find the drift velocity, I was one of the very few people that knew the formula but I made a stupid mistake and my final answer was wrong. Moral Lesson - Always watch tutorials videos to the end!!! Anyways... Thank you for this video.

[@demonrhythms8761]

Huh, your questions are the best for any topic thanks brother. It's much worthier to watch your vids than doing huge chunky class tute

[@nax1807]

I honestly watch these videos and they make me motivated to study thank you so much

[@salemezeaku3722]

You're the best♥️.... keep up the good work

[@tanjo4]

BEST VIDEO for this topic!! ❤️❤️

[@gojosatoru7jjk]

Perfect teaching ❤❤

[@ngyoklee8961]

17:40. Determine number of free electron per m cube

[@immunealtair2737]

Nice and very helpful video, thank you very much However, I want to point out that in the last exercise, you took the diameter as the radius.

[@monicajensen9615]

this is so helpful!! also love blasting this video with AirPods in when an add starts out of nowhere at full volume :p

[@ImranSarwar-mn3uk]

This is the question .. which are in majority present in our entry test examination ... And hats Upp sir

[@henrymusonda2734]

Question (5) The 5mm was the diameter So we needed to divide it by half to get the radius with would be 2.5mm converting to metres we get 2.5*10^-03m The two find the area A=πr^2 =π(2.5*10^-03)^2 A=6.25*10^-6 m squared The final answer n gave me a magnitude of n=1.75*10^29 e/m^e It was just a slight mistake Thank you

[@MohamedGamal-rv3cm]

Can you explain the concept first before solving the problems

[@sudesahin8294]

Thanks for this informative video

[@aparnaperabattula2768]

wow plzzzzzz more imp physics problem for neet exams .sir😍😍

[@JEEandNEETNotesandTricks]

Aparna Perabattula kzbin.info/www/bejne/h3mZf52tobiYmZI Physics Video

[@aparnaperabattula2768]

JEE and NEET notes and tricks tq soo much sir😍

[@idowuburhan9054]

In the fifth question you used diameter instead of radius, but thank you very much 😁

[@mosesnjuguna3244]

what about this question ?A current conductor of 2.0mm diameter has a conductivity of 8.0*10^7 Siemen/m and electron mobility of 3.0*10^-3 m^2v^-1s^-1.It is exposed to an electric field of 20vm^-1.Calculate the Current density and Electron drift velocity

[@afnanafnan9855]

Thank you sooooo much

[@AmirX-qi6nk]

example#2, for (question C calculate current density) you didn't make square when you divide 2 by 0.05mm/s

[@waqasrehman9008]

Please let us know that how we can calculate current capacity of cable if we have size of cable in Sqmm?

[@narendergodara1992]

super👌👌

[@TIGREinVOLO]

Hi and thank you for your videos. Any chance you could explain the concept of Drift Velocity for AC current? Am I right to say that velocity is zero since electrons move back and forth of the same distance? Thank you

[@denischarette-de3te]

While they move back and forth, they have a drift velocity that varies from 0 to MAX to 0 in one way and back to MAX to 0 the other way. The drift velocity and therefore the current varies sinusoidally with a frequency of 60HZ.

[@loyjensardnemla6995]

how to get the area ??

[@naturematters08]

veru helpful

[@ghostfromcod7752]

nice

[@Callmeromain2016]

Why don’t you count the mass of the protons get the density at the end?

[@joshuakayombo1762]

Lesa amipale bigeh🙏

[@okoyebethel1200]

11:51 1 divides 100 gives 0.001

[@neat677]

Ye why

[@okoyebethel1200]

@@neat677 he was wrong

[@mustafahajhamoud2077]

it's 9 months late , but he did not divide by 100, he divided by 100^2 which is 10000

[@dream.5708]

@@mustafahajhamoud2077 hey ik am late but can you please tell how he got 10 power -6 in the first problem

[@natnaelwondu8194]

What is your teaching tool i mean your electronic board is it a pc software ? plz

[@UltraTheBeastt]

yup you connect it to a laptop just a small board

[@techgirls3794]

anyone knows how he converts the density to a mole or whatever, I just can't get it no matter how much I repeated it he just does it like a piece of cake

[@blastyt7180]

How did it become 10^-6 pls tell me

[@louasgabeson8837]

D E J A V U

[@-tinshuetye-tsige3252]

+ Thank You!

[@Chintu9712]

I am not understand

[@stephencastillo]

same

[@evanrutherfordlazyahole9079]

I hope this is difficult because it is for me.

[@Shiro-ws1zg]

why is it that you don't multiple the charge Q by 47, silver has 47 electrons and the question asks for free electrons ?

[@wasafitvonline9248]

Rocky B stop claiming only a single electron is involved in electric conductivity

[@ggodwin5312]

It's only the electron in the outermost energy level that is free to conduct electricity