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## Homework Statement

A parallel-plate capacitor has plates of 10 cm^2 area separated by a 0.10mm layer of glass insulation with resistivity rho = 1.2x10^13 omega*m and dielectric constant k= 5.6. Because of the finite resistivity, current can leak through the insulation.

How do I Show that it depends only on the properties of the insulating material and not on its dimensions?

## Homework Equations

C= emf(A/d)

## The Attempt at a Solution

I found the time constant for this capacitor to discharge through its insulation. T= 590s