Conductor with charge inside a cavity | Electrostatic potential & capacitance | Khan Academy

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  • เผยแพร่เมื่อ 25 พ.ย. 2024

ความคิดเห็น • 85

  • @PadmavathiVedavalli
    @PadmavathiVedavalli ปีที่แล้ว +21

    He has covered all the advanced topics with such an impeccable quality of teaching

  • @boopeshkumar9752
    @boopeshkumar9752 2 ปีที่แล้ว +7

    The charge distribution on the outer surface doesn't depend on the charge distribution on inner surface so outer charge distribution must be uniform

  • @FabGamer
    @FabGamer 3 ปีที่แล้ว +49

    Thank u so much I was tired searching about it since long and finally got this exact thing

  • @yash1152
    @yash1152 3 ปีที่แล้ว +8

    really nice video in that it covered it from basics - i had only memorised it, but thanks for going in details without all the jargons and hype that other coaching institutes create

  • @suhai8830
    @suhai8830 2 ปีที่แล้ว +8

    Physics always leaves me speechless 💯

  • @PrabhjotSingh_24
    @PrabhjotSingh_24 3 ปีที่แล้ว +31

    sir please organize your videos, it's a humble request

    • @yash1152
      @yash1152 3 ปีที่แล้ว +4

      head over to the site mentioned in the descriptions - there, the videos are verry well organised

  • @preritsharma329
    @preritsharma329 7 หลายเดือนก่อน +7

    Fricking hell.. this is JEE Advanced level content right there, cleared all my doubts which i had on this topic! TYSM!
    Tho i may have a doubt, is it possible to calculate the electric field's *value* inside the cavity? I think not, but i am not sure

    • @badpineapple9120
      @badpineapple9120 6 หลายเดือนก่อน

      E=0 inside the cavity. Sir said in the video
      By taking gaussian surface as any spherical surface inside the solid sphere, electrostatic force inside gaussian surface is zero. Thus electric field =0.
      Refer 3:20 for more info

    • @preritsharma329
      @preritsharma329 6 หลายเดือนก่อน

      @@badpineapple9120 i am not saying inside the conductor, but the empty part between the charge and conductor

    • @abhirupkundu2778
      @abhirupkundu2778 6 หลายเดือนก่อน

      the field inside the cavity originates due to the positive charge, which means at any point the field is Kq/r^2 inside the cavity until you enter the conductor

    • @abhirupkundu2778
      @abhirupkundu2778 6 หลายเดือนก่อน

      @@badpineapple9120 you got it mixed up

    • @abhirupkundu2778
      @abhirupkundu2778 6 หลายเดือนก่อน

      the field inside a cavity is due to the positive point charge only, which is equal to Kq/r^2 at a distance r from the charge as long as you are outside the metal shell

  • @bhartikumari4167
    @bhartikumari4167 8 หลายเดือนก่อน

    Thank you….I was searching this for a long…I always used to get confused and even no one has explained this concept….finally the concepts are clear!!

  • @gurleenkang6337
    @gurleenkang6337 3 ปีที่แล้ว +4

    Why I didn't know this channel before??
    The video is so clear and easy to understand!!! Thank you very much

  • @AtsukoPrice
    @AtsukoPrice 9 หลายเดือนก่อน +4

    How'd he get the cursor to have two fingers pointed out :0

  • @Mr.D-r2r
    @Mr.D-r2r 2 หลายเดือนก่อน

    outstanding work, talking as a physics teacher

  • @Rohan-e7t
    @Rohan-e7t หลายเดือนก่อน +1

    In this video there’s a minute error, the electric field in the bulk of the sphere is not canceled by the opposing field from the +Q charge on the outer surface. According to the shell theorem, the electric field at every point inside the sphere due to the charge on the outer surface is zero. The electric field inside the bulk of the conductor is neutralized because the induced negative charges on the inner surface cause the field lines originating from the +Q charge inside the cavity to terminate on the inner surface.

  • @Standforthetruth18
    @Standforthetruth18 5 หลายเดือนก่อน

    Had tears (of happiness) finally I got it sir. I love how you raise questions and tell us to think about it. ❤ Amazing teaching 👏🏻 stay blessed

  • @jays6430
    @jays6430 3 ปีที่แล้ว +6

    Much precise, detailed and well explained than most of the videos out there on the same topic.
    your videos clear doubts instantly! keep em coming.

  • @bosslovely27
    @bosslovely27 ปีที่แล้ว +1

    You are one of the greatest teacher

  • @avnishpathak1510
    @avnishpathak1510 ปีที่แล้ว +1

    Also positive charges are immobile in a solid conductor

  • @SamiulIslam-z3d
    @SamiulIslam-z3d 11 หลายเดือนก่อน

    Such a nice explanation, I couldn't even understand a single thing by reading my text book for the 5th time....Now everything is clear.

  • @PW_Rockstar
    @PW_Rockstar 2 ปีที่แล้ว +1

    LOVE FROM UGANDA KI KALIGHATI 😌🔥

  • @AtulyaRai-gm2hc
    @AtulyaRai-gm2hc 2 ปีที่แล้ว +2

    Wow extremely clear explanation. The only video i found that covers this topic in depth.

  • @hersheysgupta
    @hersheysgupta 7 หลายเดือนก่อน

    great video! We need more educators like you

  • @jcamargo2005
    @jcamargo2005 2 ปีที่แล้ว +1

    This result is remarkable. I remember seeing this in Physics class but as usual throwing out all the amazement.

  • @padmavathivedavalli2639
    @padmavathivedavalli2639 ปีที่แล้ว +1

    Thank you sir

  • @dvsalim09
    @dvsalim09 ปีที่แล้ว +2

    What if the sphere is grounded, would it have the same results? Please answer as soon as possible, Ty

  • @anilsurjewala3606
    @anilsurjewala3606 3 ปีที่แล้ว +2

    I fell in love with your video every time

  • @irwanahmed001
    @irwanahmed001 2 ปีที่แล้ว +1

    you're a lifesaver thank you

  • @Ultimatemaster_026
    @Ultimatemaster_026 ปีที่แล้ว +1

    Best explanation

  • @AnkitPal-p9c
    @AnkitPal-p9c 3 หลายเดือนก่อน

    Literally terrific explanation

  • @Jahnavi120
    @Jahnavi120 2 ปีที่แล้ว +1

    Your explanation is very helpful...thankyou so much🤗

  • @chalkaholicasmr6823
    @chalkaholicasmr6823 หลายเดือนก่อน

    Explanation can be to the point and not take longer time

  • @precisionmedicine9091
    @precisionmedicine9091 3 ปีที่แล้ว +1

    Really got a charge out of the lecture, you have great energy.

  • @vedamurthyc2123
    @vedamurthyc2123 2 หลายเดือนก่อน

    I am grateful to you sir❤

  • @factsss7
    @factsss7 3 ปีที่แล้ว +2

    Outstanding amazing mind blowing sir

  • @md_altaf_wasim
    @md_altaf_wasim 2 ปีที่แล้ว +1

    Thanks

  • @AnkitPal-p9c
    @AnkitPal-p9c 3 หลายเดือนก่อน

    Mazza aaya!

  • @jlpsinde
    @jlpsinde 3 ปีที่แล้ว +1

    Amazing video! Thanks from Portugal

    • @PW_Rockstar
      @PW_Rockstar 2 ปีที่แล้ว +1

      Really 😶😶😶

  • @AwaisKhalid-y9r
    @AwaisKhalid-y9r 3 หลายเดือนก่อน +1

    but what if the charge is placed at the centre then the negative charges would be uniform right??

  • @jothibaskarn887
    @jothibaskarn887 หลายเดือนก่อน

    Sir excellent sir, organize your videos sir

  • @albertomontecarlo6231
    @albertomontecarlo6231 ปีที่แล้ว +1

    Hi. I like your videos. I’m following a electromagnetism and I think that this problem (which is the Faraday ice pail) explain together different properties. As a person that is learning I don’t feel that your explanation when you say that the “outside word” is disconnected from the inside because you can imagine a Gaussian surface and so there is no flux through is the best explanation.. don’t get me wrong you can explain with Gauss law but I would try to give a different explanation without Gaus law of why outside there is not other option than uniformely distribution charge..

  • @chandrikakhooha1173
    @chandrikakhooha1173 ปีที่แล้ว +1

    Superb

  • @RitumbaraSaxena
    @RitumbaraSaxena ปีที่แล้ว +1

    I am so much confused about this topic but thank u so much for solving my doubt🤩

  • @naduninelumika3337
    @naduninelumika3337 3 ปีที่แล้ว +1

    Thanks it helped a lot

  • @physicsnotesa.k.s5369
    @physicsnotesa.k.s5369 2 ปีที่แล้ว +1

  • @ryanthegooch5952
    @ryanthegooch5952 3 ปีที่แล้ว +1

    THANK YOU!

  • @sunakshi_m
    @sunakshi_m 5 หลายเดือนก่อน

    Thnku sooo much sir nd hatts of to your commendable teachingg

  • @brighttips8203
    @brighttips8203 2 ปีที่แล้ว +1

    thnks sir

  • @princeverma673
    @princeverma673 2 ปีที่แล้ว +2

    will there be any charge induced on the outer surface of the cavity?

  • @ChronicleBlaster
    @ChronicleBlaster 3 ปีที่แล้ว +1

    Thanks a lot

  • @ranjeevramprasad6672
    @ranjeevramprasad6672 3 ปีที่แล้ว +1

    Mahn ur just too gud pls continue this good work

  • @srisaisubramanyamdavanam9912
    @srisaisubramanyamdavanam9912 3 ปีที่แล้ว +2

    hush finally my doubt is solved

  • @sulochanasaroj8639
    @sulochanasaroj8639 3 ปีที่แล้ว +1

    Nice explanation

  • @brendawilliams8062
    @brendawilliams8062 3 ปีที่แล้ว +1

    Thankyou

  • @nutanpanpalia4170
    @nutanpanpalia4170 2 ปีที่แล้ว +1

    Thankyouu

  • @saksham21990
    @saksham21990 3 ปีที่แล้ว +1

    Simply awesome. Please create more such videos on difficult concepts.

  • @darkrai2065
    @darkrai2065 3 ปีที่แล้ว +2

    Sir will you cover capacitor and capacitance also.?

  • @nishok3502
    @nishok3502 3 ปีที่แล้ว +1

    Thank u providing us quality education bro

  • @ranujena784
    @ranujena784 2 ปีที่แล้ว +1

    In case of neutral dielectric sphere wht happen??

  • @milanrai3607
    @milanrai3607 ปีที่แล้ว +2

    So what is the field inside the cavity?

  • @pedrokogawa8191
    @pedrokogawa8191 3 ปีที่แล้ว +3

    Hi, does that means I have a field equal to the resonance field outside of the room (faraday cage) but more scattered ?

  • @jayasimhankrishnamurthy2245
    @jayasimhankrishnamurthy2245 2 หลายเดือนก่อน

    How the positive charges are supposed to gather around the conductor if there's no electric field in-between them or they're disconnected from the inner postive charge? Can someone clarify this?

  • @samramzi4639
    @samramzi4639 8 หลายเดือนก่อน

    A spherical conducting shell, centered at the origin, has inner radius a and outer radius
    b. Its net charge is zero. Inside the shell, on the x-axis at at x = a/2 there is a point
    charge q.
    Which will be the direction and magnitude of the electric force acting on the point
    charge?

  • @plonksmag2686
    @plonksmag2686 ปีที่แล้ว +1

    The electric field inside the conductor should be zero but doesnt the field lines between the charge q and induced negative charge indicate an electric field??

  • @tarandeepsinghkhurana2874
    @tarandeepsinghkhurana2874 2 ปีที่แล้ว +1

    Sir i have a doubt, let's say the cavity is of an irregular shape then the charge distribution on the surface of cavity will depend upon the position of point charge inside the cavity or on the local radius of curvature of the cavity ?

    • @navkhr352
      @navkhr352 8 หลายเดือนก่อน +1

      Depends on the position of charge inside the cavity otherwise electric field won't be zero
      Centre of charge of non uniformly induced charges (-q ) on surface of cavity will lie on the charge (+q) inside the cavity (off centre here) so that E=O inside the material of the conductor

  • @alongwithsangita
    @alongwithsangita 2 ปีที่แล้ว +1

    Is the charge on outer surface same as in centre or Different?

    • @navkhr352
      @navkhr352 8 หลายเดือนก่อน

      It has to be same

  • @yashchandra633
    @yashchandra633 หลายเดือนก่อน

    How to find potential at centre?

  • @kaydenbreak-wo4xj
    @kaydenbreak-wo4xj 10 หลายเดือนก่อน

    Such a Nice voice😂😊

  • @seshareddy1235
    @seshareddy1235 5 หลายเดือนก่อน

    ❤❤❤❤❤❤❤❤🎉🎉🎉🎉🎉

  • @Subramanyam-go2wv
    @Subramanyam-go2wv ปีที่แล้ว +1

    Explanation is everything good....but while listening into another English accent feeling difficult to hear....

  • @NOTHING_In_
    @NOTHING_In_ 5 หลายเดือนก่อน

    It's probably the laziest video you ever made

  • @malharpatil157
    @malharpatil157 2 ปีที่แล้ว +2

    Avoid that cheap accent 🙏

  • @Noah-jz3gt
    @Noah-jz3gt 2 ปีที่แล้ว +2

    thanks a lot

  • @ritankarmondal0411
    @ritankarmondal0411 ปีที่แล้ว +1

    Thanks a lot