1. The problem statement, all variables and given/known data An isolated conductor of thickness 'a' is placed between the plates of a parallel plate capacitor. Find the capacitance 2. Relevant equations C = A/(4*pi*d) 3. The attempt at a solution C1 = A/(4*pi*((d-a)/2)) C2 = A/(4*pi*((d-a)/2)) 1/C = 1/C1 + 1/C2 Plugging in C1 and C2... 1/C = (8*pi*((d-a)/2)) / A or C = A / (8*pi*((d-a)/2) If im understanding this correctly...the conductor divides the capacitor into two capacitors in series...if someone can confirm this i appreciate it. TIA.