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Bound surface charge density

  1. Jan 14, 2019 #1
    1. The problem statement, all variables and given/known data
    IMG_20190114_112104.jpg



    2. Relevant equations

    ∫Dperpendiculards=qenclosed freecharge
    D=ε0E+P

    3. The attempt at a solution
    D1+D2=q/2πr2
    at a distance r from the centre
    How to find D2 which is at the lower boundary e.g inside the dielectric??
     
    Last edited: Jan 14, 2019
  2. jcsd
  3. Jan 14, 2019 #2

    scottdave

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    Think about how, if any, would the dielectric change how the charge is on the sphere.
     
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