All Questions
4
questions
1
vote
2
answers
74
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On the (variable?) nature of $\epsilon_0$ and $\mu_0$
In electromagnetism, the electric displacement field D represents the distribution of electric charges in a given medium resulting from the presence of an electric field E. Its relation to ...
- 115
1
vote
0
answers
25
views
Will changing the energy density of the vacuum alter its permitivity or permeability? [closed]
If one uses lasers or a variation of the Casimir effect to change the energy density of a region of free space, will this also change the permeability and the permittivity of this same region? Why or ...
- 609
2
votes
2
answers
155
views
Electromagnetism Permeability of vacuum [duplicate]
How vacuum could have electromagnetism Permeability when there is no molecule in it.
(Permeability of other medium get describe with effect of their polar or magnetic molecule)
- 121
0
votes
1
answer
51
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What determines the property of vacuum that allows EM field to propagate?
As in case of sound it the disturbance that propagates by exchange of energy between particles. what is analogously related to em wave, where there is propagation of energy stored in electric and ...
- 165