A parallel plate capacitor has a capacitance of 9.1 μF when filled with a dielectric. The area of each plate is 2.0 m2 and the separation between the plates is 1.5 x 10-5 m. What is the dielectric constant of the dielectric?

Answer 1

C=εε₀A/d
ε=Cd/ε₀A =
=9.1•10⁻⁶•1.5•10⁻⁵/8.85•10⁻¹²•2 =7.7.