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tlovoi

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Half sphere with radius 1x10^-3 meters

Coating Thickness = 1x10^-6 meters

Resistivity = 5x10^-8 ohm m

Diameter of one electrode 5x10^-4 meters

I don't even know where to start. I figure if I knew the resistance of a triangular shape with electrodes on each edge I could break the sphere up into "slices" and integrate treating each slice as a separate resistor in parallel. 1/Rtotal = 1/R1 + 1/R2 etc... but it would require knowing the resistance of a thin film with a triangle shapped geometry.

Can anybody help? Or at least start me in the correct direction...

Thanks!