Metal Sphere surrounded by dielectric

  • Thread starter Marioqwe
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It is Example 4.5 in Griffiths intro to Electrodynamics.

A metal sphere of radius a carries a charge Q. It is surrounded, out to radius b, by linear dielectric material of permittivity epsilon ....

He goes on to say that E = P = D = 0 inside the sphere. I understand that D = 0 inside, but why is E = 0? Is the polarization of the dielectric pulling all of the charge inside the sphere to the surface? I really don't understand :(.
 

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  • #2
rude man
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If it's a metal sphere,where are the charges ALWAYS congregated, assuming a static situation? And why?
 

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