Metal Sphere surrounded by dielectric

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
1 reply · 5K views
Marioqwe
Messages
65
Reaction score
4
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 :(.
 
Physics news on Phys.org