- #1

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## Homework Statement

A parallel-plate capacitor has plates with 38.1 cm2 area separated by a 29.0 μm layer of Pyrex glass.

(a) Find its capacitance.

(b) Find its maximum working voltage.

Kappa for pyrex glass is = 5.6

A= 38.1 cm^2 = 3.81*10^-3 m^2

d= 29*10^-6 m

## Homework Equations

C=(Kappa*Epsilon*A)/d

Q=CV

## The Attempt at a Solution

I have gotten the answer to part a by just plugging and chugging with the equation C=(Kappa*Epsilon*A)/d. For the second part I don't understand how to calculate the maximum voltage if I don't have a charge (Q). I'm sure there is some way to manipulate these equations. Any help?