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erisedk
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Homework Statement
Why are both these problems identical?
In both cases, c>b>a.
Q1 Three concentric conducting shells A, B and C of radii a, b and c are arranged as shown. A dielectric of dielectric constant K is filled between A and B. Find the capacitance between A and C.
Q2 A spherical capacitor is made of two conducting spherical shells of radii a and c. The space between the shells is filled with a dielectric of dielectric constant K unto a radius b as shown. Find the capacitance of the system.
Homework Equations
The Attempt at a Solution
Both have answers (4πεo.Kabc)/(Ka(c-b)+c(b-a))
I know how to do the first one, but I don't understand why both have the same answer, ie. why the capacitance of the system is equal to the capacitance between A and C.