1. The problem statement, all variables and given/known data I do not have a specific question, I am just wondering how one would go about finding the capacitance of three concentric spherical shells. Suppose the outer radius of the each shell is a, b, and c from the center outwards. 2. Relevant equations E= -gradV C = Q/ V, which for two shells = (4∏ε)/ ((1/a)-(1/b)) ... this is the voltage between the two shells. 3. The attempt at a solution If we found the voltage between the two inner shells and then the to outer shells, perhaps we could add them? What do you you all think?