1. Where is the electric constant , the relative static permittivity, and is the polarization density. 2. Where ? 0 is the electric constant , and ? is the electric susceptibility of the medium. 3. The R6D Navy version ( in the late 1950s and early 1960s ) had Curtiss Electric constant -speed reversing propellers. 4. PS . There is a separate argument as to whether the vacuum permittivity article should be called " electric constant ". 5. The quantity & epsilon; 0 is the electric constant , which appears here because of the use of electromagnetic SI units. 6. Where is the electric flux through a closed surface enclosing any volume, is the total charge enclosed within, and is the electric constant . 7. You would need to change some physical constants appropriately ( reduce the electric constant to increase the size of atoms, amongst other things ). 8. Expanding the angular frequency ? = 2?c / ? and the electric constant ? 0 = 1 / ( ?0 c 2 ), it reduces to: 9. Where is the divergence of the electric field, ? 0 is the electric constant , and is the total electric charge density ( charge per unit volume ). 10. Where ? 0 is the electric constant of a vacuum, 10 7 / 4? " c " 0 2 or 8.854188 & ?10 " 12 F m " 1.