Drift velocity (concept & intuition) | Electricity | Physics | Khan Academy

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  • Опубліковано 13 гру 2024

КОМЕНТАРІ • 211

  • @PRIYA-cs9es
    @PRIYA-cs9es 3 роки тому +177

    Finally found my Dream Teacher❤

  • @manoharauchiha
    @manoharauchiha 3 роки тому +156

    I have watched physics wallah, aman dhattarwal, byju's, vedantu but you understood the concept perfectly to me.
    Thank you for bringing my confidence back.

    • @experitusFPS
      @experitusFPS 3 роки тому +28

      I always get lost when they (Physicswallah, Aman dhattarwal etc) explain such topics but videos such as Khan academy's makes it so easy. Maybe because of the illustrations?

    • @Movableobject
      @Movableobject 2 роки тому +5

      @@experitusFPS everything's just better in these vids

    • @pankajchaudhary2644
      @pankajchaudhary2644 2 роки тому +10

      The topic is such a mess that even great teachers can't explain 😂

    • @adarshpandey1220
      @adarshpandey1220 2 роки тому +1

      @@pankajchaudhary2644 truee ..

    • @ayonsingha6970
      @ayonsingha6970 2 роки тому +2

      R.I.P English

  • @vivekgupta3692
    @vivekgupta3692 4 роки тому +47

    Everyday I eagerly waiting for your videos 👍

  • @grahamh7041
    @grahamh7041 3 роки тому +16

    Finally - I found it ! What a superb explanation. Thank you.

  • @hardikgupta6693
    @hardikgupta6693 4 роки тому +49

    Without a battery, we assume that the number of electrons going the right side of any cross-section is equal to the number of electrons flowing towards the left. But when the battery is applied, it applies a force on the electron (potential difference) which drifts them towards the positive terminal.

    • @rupalichaudhury103
      @rupalichaudhury103 3 роки тому +2

      If there is higher potential in one side of circuit .. will the drift velocity will change ?? 2. Velocity of electron flow does it depend on velocity of current ?? .3. If due to the higher potential difference of battery the circuit get heated then velocity of electron will decrease or not if yes then current should be decrease right????

    • @vivekbarjod6815
      @vivekbarjod6815 3 роки тому +2

      @@rupalichaudhury103 1.yes it will change as I increase , due to V=IR,where r is constant in wire,V increase I increase,I is charge flow per unit time,as charge flow increased implies drift velocity also increased!

    • @vivekbarjod6815
      @vivekbarjod6815 3 роки тому +2

      @@rupalichaudhury103 3.V=IR, more potential means more current it,heat depend on R not V ,
      that is more V won't mean more heat

    • @rupalichaudhury103
      @rupalichaudhury103 3 роки тому +2

      @@vivekbarjod6815 thanks 😊

    • @vivekbarjod6815
      @vivekbarjod6815 3 роки тому +2

      @@rupalichaudhury103 sorry i think in 3. you are correct
      as more V means more Current so more electron will bump causing more heating so it maybe possible that current slow down
      See resistance increase with temperature
      so mathematically speaking current will slow down
      thanks for reading
      this was nice question

  • @Ilegator
    @Ilegator Рік тому +2

    This is literally one of the most important videos I'll probably watch in my life. Finally understood how actually electricity works. I was watching Veritasium's video but this one was the one that clicked on me. Thank you so much.

  • @theboyofjoyy
    @theboyofjoyy 3 роки тому +9

    நன்றி தல♥️♥️

  • @ourtamilnadu9011
    @ourtamilnadu9011 3 роки тому +8

    Extraordinary explaination with simple words and practical thinking.👍

  • @kanankhurana986
    @kanankhurana986 4 роки тому +3

    a perfect video..to clear your concept..this certainly is the best channel

  • @areebasiddiqui4377
    @areebasiddiqui4377 3 роки тому +5

    your lecture really helped alot.. thank you so much

  • @vivekgupta3692
    @vivekgupta3692 2 роки тому +10

    *_Summary Of The Video :-_*
    *Thermal Motion* -
    * Without a battery the electrons in a conductor are not in the rest but they are moving in random direction with a high Speed.
    * The random motion of electron caused due to the temperature, that is why it is called *Thermal Motion*
    *Drift Motion -*
    * In the presence of battery the electrons in a Conductor start drifting with a constant velocity called *Drift Velocity* .
    *Remember* -
    * Thermal motion of electrons do not causes any current.
    * Drift Motion Of Electrons Causes Current In the Conductor.

  • @Fjorge1405
    @Fjorge1405 4 роки тому +32

    Hi, I am from Peru, you are such a good explainer. I am physicist, unemployed now, and you are inspiring me of making videos to teach physics in youtube, but I dont know what app do you use to do it. Thanks

    • @artofbeingurself2972
      @artofbeingurself2972 3 роки тому

      Good luck sir🌟🌟

    • @electrowizard2658
      @electrowizard2658 3 роки тому +1

      please come to india if u can teach us

    • @adityaagrawal5407
      @adityaagrawal5407 2 роки тому +2

      @@electrowizard2658 ya India totally needs these wizards?(physicst teachers) who can explain in very ease and so muchh craze so that students don't havre to go to different coachings...

  • @healer4788
    @healer4788 3 роки тому +4

    He teaches pretty well I understood it so clearly tq sir

  • @anricogideon78
    @anricogideon78 2 роки тому +5

    this is a perfect explanation! thank you

  • @kunalmandal011
    @kunalmandal011 2 роки тому +3

    No words for this lacture 🥺❤️
    Thankyou you sir🌼💗

  • @CHRISTOPHER-mp1cg
    @CHRISTOPHER-mp1cg 3 роки тому +22

    I'm surprised,the lecture is so simple easy and very understandable ❤️❤️

  • @prakashs6784
    @prakashs6784 2 роки тому

    I found my teacher finally.. Love u lot thano

  • @rajeevranjanbharti3312
    @rajeevranjanbharti3312 3 роки тому +1

    Amazing... truly amazing..don't have words..🤐

  • @giorgilagidze9020
    @giorgilagidze9020 Рік тому +1

    I had to comment this. This man is the best in the whole team. He is even better than Sal

  • @gitaraniroy5040
    @gitaraniroy5040 3 роки тому +3

    Greatly explained 👏

  • @subhasmitamishra
    @subhasmitamishra 7 місяців тому +1

    Really it is the best explanation video of drift velocity, thankyou very much sir 🙏🙏

  • @calicoesblue4703
    @calicoesblue4703 2 роки тому +1

    Awesome Video, Thank You !!!

  • @honestman276
    @honestman276 Рік тому

    Edu Point has explained drift velocity of free electrons inside the external circuit well like you. Thanks from Bangladesh.

  • @TAMIZHSELVANSEKAR-rh1ib
    @TAMIZHSELVANSEKAR-rh1ib 5 місяців тому

    Best video I ever seen 😍

  • @Talentist-if4ge
    @Talentist-if4ge 2 місяці тому

    Too good. Way to go

  • @thembilove
    @thembilove Рік тому

    I finally get it!!!! Thanks for the video❤

  • @rakeshkulkarni4323
    @rakeshkulkarni4323 2 роки тому

    Khans academy and edupoint are best channels

  • @Moonbrwlstar
    @Moonbrwlstar 2 роки тому +1

    Wooooo I love this part a lot 😄😄😄so plese teach in English more

  • @darkrai2065
    @darkrai2065 4 роки тому +1

    Pls don't ever stop making videos ....😊🤗🤗

  • @pappu6763
    @pappu6763 Рік тому

    It's amazing and unimaginable for me
    ❤❤

  • @TheBoi55
    @TheBoi55 Рік тому

    First time understood it 😮

  • @baluravii
    @baluravii 4 роки тому +1

    👏👏👏👏 *പൊളി സാനം*

  • @rumours.9508
    @rumours.9508 3 роки тому

    Your anime and your communications are top notch

  • @tarapun4492
    @tarapun4492 Рік тому

    lovely i found this video as an most effective as well as easy understandable logics to the student in this whole youtube..❤❤❤❤❤ 😊😊😊😊

  • @prakhargupta4417
    @prakhargupta4417 4 роки тому +2

    Yo nice explanation!

  • @patakotisrinivas1918
    @patakotisrinivas1918 Рік тому

    Excellent explanation sir

  • @kumudrathi4857
    @kumudrathi4857 3 роки тому +1

    By seeing this video i understood drift velocity easily

  • @amalayamalay8354
    @amalayamalay8354 3 роки тому

    Tq sooo much sir u explain vry Well in Easy elgish so that we can understand it bettr tqs sooo much sir ..i understood d topic

  • @federicomaisch8019
    @federicomaisch8019 2 роки тому

    Thank you for sharing

  • @aloksrivastava9169
    @aloksrivastava9169 Рік тому

    what a god level explainer

  • @UditaBijlani
    @UditaBijlani 4 роки тому +1

    Osm blossom👍👍😌contentment 😋

  • @visheshpal7353
    @visheshpal7353 2 роки тому

    What an explanation...grt❤️

  • @shekhersuman5843
    @shekhersuman5843 3 роки тому

    Khan academy is really good

  • @sanjaykumarpalai4979
    @sanjaykumarpalai4979 4 роки тому

    East or West
    Khan academy is the only very very best

  • @AparnaDhakar-b5f
    @AparnaDhakar-b5f 11 місяців тому

    Hello sir, this explaination is awesome. I am a hindi medium student but I can easily understand your videos 🎉 thank you so much, these videos are very useful for us

  • @Kitty786kat
    @Kitty786kat Рік тому

    Thankyouuuu soo much sirr u are amazinggggggg❤

  • @rudrapatel813
    @rudrapatel813 3 роки тому

    Finally satisfied with this topic.....

  • @rajendrapatankar4985
    @rajendrapatankar4985 7 місяців тому

    Excellent .

  • @pirates8228
    @pirates8228 3 роки тому +1

    3 years...3 years i have been wondering what it was and now i got it

  • @gagana.p732
    @gagana.p732 4 місяці тому

    Pls keep uploading videos ❤

  • @adwiteeyarupanteepaul7637
    @adwiteeyarupanteepaul7637 3 роки тому

    ABSOLUTELY AMAZING

  • @FEG_Studio
    @FEG_Studio 3 роки тому

    Great Video💗💗💗

  • @worldacademy1706
    @worldacademy1706 3 роки тому

    Whats a kind of Explanations 👊👊👊👏👏👏

  • @kazitawfiq08
    @kazitawfiq08 2 роки тому

    this video was good

  • @EG-ne7yp
    @EG-ne7yp Рік тому

    Now superconductor finally make sense. No applied electric field energy wasted on counteracting thermal motion at absolute zero temperature.

  • @sagarbhardwaj2438
    @sagarbhardwaj2438 3 роки тому +1

    Wow just amazing up until i could not visualise as to what is exactly happening

  • @sahilnagar00yt16
    @sahilnagar00yt16 Рік тому +1

    nice sir😍🥰🥰🔥🔥🔥

  • @niladribhowmik9459
    @niladribhowmik9459 4 роки тому

    The most relivent channel

  • @mansisingh7090
    @mansisingh7090 3 роки тому

    Bestest ❤️..loved the way of explaination

  • @geetha-zo9tz
    @geetha-zo9tz Рік тому

    Khan i love u❤

  • @balamphrangmarbaniang9837
    @balamphrangmarbaniang9837 5 місяців тому +1

    Thanks sir

  • @mullarajiya2416
    @mullarajiya2416 3 роки тому

    Sir on correction. When you increase the electric field then drift velocity will decrease. Only that one sir... .. I understood your teaching

    • @donovanan9224
      @donovanan9224 3 роки тому +1

      Wait no.. when electric field is increased, then drift velocity also increases... we use a battery with more energy and as a result the acceleration increases and thermal velocity remains same so..drift velocity increases.. ig

  • @mushrafkhan7597
    @mushrafkhan7597 Рік тому

    This is teaching. Hattsoff

  • @seemapuhan2941
    @seemapuhan2941 4 роки тому +1

    I love Khan academy. ❤️❤️❤️❤️❤️♥️💌💌

  • @nikitaraj8959
    @nikitaraj8959 2 роки тому

    Decrease in relaxation time, due to increase in the temperature will definitely reduce the drift velocity. 🙏🏻

  • @subhasmrutipanda7916
    @subhasmrutipanda7916 3 роки тому

    Thank you sir🙏

  • @anjalivishwakarma4650
    @anjalivishwakarma4650 3 роки тому

    Amazing... Nd amazing

  • @JAY-xx7zl
    @JAY-xx7zl 2 роки тому

    Thanks sir you are the best teacher❤

  • @ANURAGKUMAR-fo1hu
    @ANURAGKUMAR-fo1hu 3 роки тому +1

    Bhai aap india ke ho aur angrazo wali english bol lete ho op bro

  • @Brat____
    @Brat____ 2 роки тому

    Thank you so much 🥰

  • @ruth3121
    @ruth3121 2 роки тому +1

    How do you increase the temperature in the circuit? Btw, Awesome Explanation!!!

  • @divy_maurya
    @divy_maurya 2 роки тому

    I loved it

  • @honestman276
    @honestman276 Рік тому

    Alakh Pandey is also well. Thanks from Bangladesh.

  • @taba466
    @taba466 3 роки тому

    thank you

  • @atifraufnn2075
    @atifraufnn2075 3 роки тому

    Excellent

  • @sha2nk.g
    @sha2nk.g 4 роки тому

    sir you are awesome

  • @EigenPulse
    @EigenPulse 3 роки тому

    Very good sir

  • @Sarangi_vlogs
    @Sarangi_vlogs 3 роки тому

    Interesting ❤️

  • @juhayorrahamanjahin6576
    @juhayorrahamanjahin6576 4 роки тому

    AWESOME VIDEO

  • @Hemant841
    @Hemant841 4 роки тому

    nice study point

  • @rajeshramalingam5504
    @rajeshramalingam5504 2 місяці тому

    8:34 Sir, drift velocity of electrons is very slow. But how current conduction happens at a instant? Clarify the difference

    • @laserdiode
      @laserdiode 2 місяці тому

      The battery produces an electric field that applies the same force to all electrons almost instantly

    • @rajeshramalingam5504
      @rajeshramalingam5504 2 місяці тому

      Ok, then Are fields of electrons only passed ?

    • @rajeshramalingam5504
      @rajeshramalingam5504 2 місяці тому

      Without actual movement of particles

    • @laserdiode
      @laserdiode 2 місяці тому

      @@rajeshramalingam5504 The electrons start moving at the drift velocity as soon as the electric field applies a force to them. The electric field propagates close to the speed of light so all the electrons start moving almost at the same time

    • @BN-MAX-13
      @BN-MAX-13 Місяць тому

      There is trillion of electrons which are accelerated at the same time

  • @vahagnmelikyan2906
    @vahagnmelikyan2906 2 роки тому

    What do you mean by work energy per coulomb. Are the electrons pressed harder, or heated up, or whatever reason?

  • @erkaltarm2872
    @erkaltarm2872 3 роки тому +1

    Thanks for video. In other words, the flow velocity of electrons through the cable is determined by the potential difference, right?

  • @hardikgupta6693
    @hardikgupta6693 4 роки тому +1

    Thank you, sir, you are great.

  • @mihikahetamsaria
    @mihikahetamsaria 3 роки тому +5

    If the different velocity is so slow, then how does the bulb glow the second you turn the switch on?

    • @HARSHYADAV-jv2ln
      @HARSHYADAV-jv2ln 3 роки тому +2

      Because there are electrons everywhere...even really close to the bulb which reach to it instantly...You don't need to send them from battery or from thousand miles away

    • @farqaleetabdullah
      @farqaleetabdullah 3 роки тому

      @@HARSHYADAV-jv2ln and Mihika, it can also be explained as electric field takes place with the speed of light i.e when electrons drift

    • @favesongslist
      @favesongslist 3 роки тому

      @@HARSHYADAV-jv2ln Surely it is the electro magnetic fields that are moving in the circuit; the electrons enable the flow of this charge!

    • @Thanos-hp1mw
      @Thanos-hp1mw 2 роки тому

      Poynting vector

    • @ektakumari1568
      @ektakumari1568 7 місяців тому

      Impulse is the answer

  • @studio440hzz4
    @studio440hzz4 3 роки тому +3

    how do we know the difference between positive and negative charge how do we define it ? who found out that there are 2 types of charges ? how do we came to know that the valence electrons are not stable without a battery ? if they are not stable why doesnt the shape of the conductor change or disintegrate ? ( without applying charge) how did we arrive to this conclusion that electron drift is at a constant velocity ? how can we increase it ?

  • @Isoleu
    @Isoleu 4 місяці тому +1

    you previously said in the video that, electrons move due to the force of the electric field, and due to this force the electrons move faster in 100km/s but they collide with atoms or ions, etc, and makes them vibrate which causes thermal velocity, so due to field we can say that thermal velocity is due to field, but you said it will remain same,? why

  • @nervyop5453
    @nervyop5453 4 роки тому +1

    If without a potential difference too, the electrons are colliding with the protons, then isn't the electrons likely to be loosing energy?

    • @KhanAcademyIndiaEnglish
      @KhanAcademyIndiaEnglish  4 роки тому +2

      Absolutely right, and as they do that, the conductor cools down, ever so slightly, below the surrounding temperature. So heat quickly flows in from the surroundnig and the electrons gain the energy back.

    • @nervyop5453
      @nervyop5453 4 роки тому +1

      @@KhanAcademyIndiaEnglish oook. Coool.. Thanks dude for explaining.

  • @gkuntold9082
    @gkuntold9082 Рік тому

    Is there any heat generating during thermal motion, beacuse of the collision take placing?

  • @AtmuHireningappanavar
    @AtmuHireningappanavar Місяць тому

    He has his own channel called float head physics

  • @rubensverstappen3458
    @rubensverstappen3458 4 роки тому

    Excellently explained! Thanks for this.

  • @devnull0368
    @devnull0368 4 роки тому +2

    when will the videos be on khan academy website?

  • @studyallnightstusy3630
    @studyallnightstusy3630 3 роки тому +1

    YOU ARE GOD BRUH... I DIDNT KNEW THAT SOMEONE CAN EXPLAIN DRIFT VELOCITY TO EASILY

  • @divy_maurya
    @divy_maurya 2 роки тому

    Nice

  • @hardikgupta6693
    @hardikgupta6693 4 роки тому +1

    Make a video on the conventional flow of current pls

  • @PankajDas-q7d
    @PankajDas-q7d 7 місяців тому

    Insane

  • @ironpatriot2905
    @ironpatriot2905 2 роки тому

    Sir, my que. Is- if drift velocity is very low, why do we get current instantly?

  • @HarbingerofTKD
    @HarbingerofTKD 3 роки тому +1

    Day by day he gazed upon her.
    Day by day he gazed upon her.

  • @vivekvankar2178
    @vivekvankar2178 3 роки тому +1

    Wow

  • @favesongslist
    @favesongslist 3 роки тому

    Surely it is the electro magnetic fields that are moving in the circuit; the electrons enable the flow of this charge!