Is there a value for epsilon?

[wendo]

Is there a value for epsilon in the equation:

k=1/4pi-epsilon?

[cepheid]

http://en.wikipedia.org/wiki/Permittivity_of_free_space

[berkeman]

Spidey strikes again!

[hadron40]

You're referring to "epsilon zero" which is approximately 8.854 e-12.