Physics Practice Problems Intro To Dielectrics Practice Problems Solution: A parallel plate capacitor has a measured capacita...

Solution: A parallel plate capacitor has a measured capacitance of 1.0 pF, and is charged to 2.0 μC, then disconnected from the power supply. The space between the plates is then filled with a certain dielectric material with a dielectric constant of K = 4.0. What is the resulting capacitance and the stored electric potential energy? A) 4.0 pF and 1.0 J B) 0.25 pF and 0.5 J C) 4.0 pF and 0.5 J D) 4.0 pF and 4.0 J

Problem

A parallel plate capacitor has a measured capacitance of 1.0 pF, and is charged to 2.0 μC, then disconnected from the power supply. The space between the plates is then filled with a certain dielectric material with a dielectric constant of K = 4.0. What is the resulting capacitance and the stored electric potential energy?

A) 4.0 pF and 1.0 J

B) 0.25 pF and 0.5 J

C) 4.0 pF and 0.5 J

D) 4.0 pF and 4.0 J