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reaper929
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Homework Statement
Metal sphere of radius R1 is surrounded by a concentric metal shell of inner radius R2 and outer radius R3. The dielectric is air. Calculate coefficients of capacitance for the given setup.
Homework Equations
Picture of the problem:
The Attempt at a Solution
I have tried arriving to the solution by using coefficients of potential. I have done the following:
[itex]\varphi_{1}=Q_{1}/4\pi\epsilon_{0}R_{1}+Q_{2}/4\pi\epsilon_{0}R_{3}
\\\varphi_{2}=Q_{1}/4\pi\epsilon_{0}R_{3}+Q_{2}/4\pi\epsilon_{0}R_{3}[/itex]
But it looks errorneous to me. Can anybody clarify the matter for me?