- #1
goodphy
- 216
- 8
Dear all.
I would like to know the general expression of the ratio of the electric field strength E to the magnetic flux density B. I know E/B = c, where c is the speed of light, for a vacuum, but I want to know if this is stil valid for any material where the electric and magnetic fields are present.
Dose E/B = c hold for any cases, or the general expression is E/B = v,where v is the speed of the electromagnetic wave through the medium where E and B fields are present?
I would like to know the general expression of the ratio of the electric field strength E to the magnetic flux density B. I know E/B = c, where c is the speed of light, for a vacuum, but I want to know if this is stil valid for any material where the electric and magnetic fields are present.
Dose E/B = c hold for any cases, or the general expression is E/B = v,where v is the speed of the electromagnetic wave through the medium where E and B fields are present?