A certain sample of pure quartz has a dielectric constant of 3.8, dielectric strength of 1.0 kV/0.0010 in, and a density of 2.6 Mg/m3.
Assume the number density of dipoles in quartz is the same as the number density of SiO2 units. What magnitude of dipole strength has to be associated with these units under to support the polarization found under a field of 5.0 kV/cm?