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Electrical permittivity

  1. Jul 7, 2011 #1
    When a point charge is put in a medium, it polarizes the medium and thus reduces the total electric field inside the medium.... I don't understand why does the electric field reduce when the medium gets polarized....

    My question in other words is that, when we look at the coulomb's law, we see that the greater the permittivity is, the less will be the electric field intensity...the greater the permittivity of the medium, the greater is its ability to get polarized.... So, why does polarization of the medium reduce the electric field intensity...????

  2. jcsd
  3. Jul 7, 2011 #2
    The field produced by the polarized medium is opposite to the external field.
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