442 



Tables 519-521 



TABLE 519. — Dielectric Constant (Specific Inductive Capacity) of Gases 



Atmospheric Pressure 



TABLE 520. — Variation of the Dielectric Constant with the Temperature 



If ee = the dielectric constant at the temperature d°C of the above table, e« at the tem- 

 perature /°C, and a and P are quantities in the following table, then « ( = ee — a (t — 6) + 

 Pit- 6)\ 



The dielectric constant of air at 76 cm and varying temperature may be calculated since 

 D — 1 is approximately proportional to the density. 



TABLE 521. — Variation of the Dielectric Constant of Gases with the Pressure 



Smithsonian Tables 



