Question TOlo View Policies Current Attempt in Progress What is the difference between a polar dielectric and a nonpolar dielectric? O A nonpolar dielectric never has an internal electric field. O A polar dielectric has a permanent electric field. O A nonpolar dielectric can have an induced electric field in any direction. O The molecules of a polar dielectric have a permanent electric dipole moment. O A polar dielectric is always aligned with the Earth's electric field