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## Homework Statement

a parallel-plate capacitor (2 plates) is filled with titanium dioxide which has a dielectric constant of 80. the area of each plate is 1 cm^2.

a) what must be the spacing between the plates if one wishes to make a 10^-10 farad capacitor?

b) if the dielectric strength of titanium dioxide is 10^8, what is the maximum chrage that this capacitor can safely store?

## Homework Equations

dielectric constant kappa = 80

epsilon_0 -- constant = 8.85*10^-12

capacitance C = kappa[(epsilon_0*A)/d] where A is area, given = 1 cm sq, d is distance, unknown.

## The Attempt at a Solution

part a:

capacitance C = kappa[(epsilon_0*A)/d] where C = 10^-10 farad, kappa = 80, epsilon_0 = 8.85*10^-12 ---> solve for d, d = 0.0708 meters = 7.08 cm

correct?

part b:

unsure, how does dielectric strength relate to dielectric constant?

what equation should i use, is it similar to one the i used in part a?

thanks