Vacuum as a dielectric material

[aliz_khanz]

I have a powerpoint presentation and I don't really understand this topic . I have looked up for vacuum and dielectric materials individually and separately but still there is no success.

I found one website very useful but I am not sure is this a same thing. Please help !


http://www.ami.ac.uk/courses/topics/0184_dp/index.html


I have this presentation in less than 48 hrs so a quick and accurate help will be much appreciated !

 

[tiny-tim]

hi aliz!

i assume that air as dielectric will be just as good …

if so, try googling "air dielectric capacitor" ​

 

[Studiot]

Look up 'displacement current', which flows in vacuum courtesy of its dielectric properties.

eg the last few paragraphs in particular of

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

 

[nasu]

I have a powerpoint presentation and I don't really understand this topic . I have looked up for vacuum and dielectric materials individually and separately but still there is no success.

I found one website very useful but I am not sure is this a same thing. Please help !


http://www.ami.ac.uk/courses/topics/0184_dp/index.html


I have this presentation in less than 48 hrs so a quick and accurate help will be much appreciated !

I am not sure what your question is.
However, vacuum is not really a dielectric. For example it cannot be polarized in a field and it has no dielectric breakdown. It is an insulator though.