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zhillyz
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Homework Statement
A conducting sphere of radius A has a charge +Q on it and is surrounded by an insulating material whose dielectric constant varies with radius according to εr = 2exp[-(r/a-1)]2. The dielectric has a spherical outer boundary B. Find the values of D, E, P, ρ as a function of r.
Homework Equations
εr = 2exp[-(r/a-1)]2,
Gauss's Law?
The Attempt at a Solution
Outside conducting sphere:
D directed radially outward so using symmetrical surface integral form of Gauss law, D = q/4∏r2.
E=D/ε0 = q/4∏ε0r2.
Inside sphere:
D=0, E=0.
Not sure if this is right or what next steps to take?