(a) Find the capacitance of spherical capacitor having concentric shells of radii a `a` and `b (bgta)`. The space between the shells is completely filled by a dielectric of constant `k`.
(b) Find the capacitance if dielectric is filled upto an intermediate radius `c(a lt c lt b)` between the shells.

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1 Answers

Correct Answer - `C=4piepsilon_(0)k((ab)/(b-a))`; (b) ` (k abc)/(ka(b-c)+b(c-a))`

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