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Susceptibility dielectric material

  1. Nov 2, 2009 #1
    1. The problem statement, all variables and given/known data
    I have a linear dielectric material. The electric field in the material is 38% less than a vacuum field with the same external sources. I need to find the susceptibility of the material?

    2. Relevant equations

    I used
    P=[tex]\epsilon[/tex][tex]\chi(vacuum)[/tex]E
    P=[tex]\epsilon[/tex][tex]\chi(material)[/tex].62E


    3. The attempt at a solution
    i did the ratio of the 2 and i found

    [tex]\chi(material)[/tex]= 1.61

    is this correct?
     
  2. jcsd
  3. Nov 10, 2009 #2

    gabbagabbahey

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    I'm not sure what you mean here.. the polarization in vacuum should be zero shouldn't it? What field stays the same when the free charge sources are unchanged? Electric field ? Displacement field? Polarization?
     
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