Recent content by eftrsd

Thanks Zz for replying. I should have said "air vacuum" which is not the absolute vacuum, of course. My question is in fact related to a specific problem: The electrostatic potential of a dielectric spherical cavity due to point charge located within it. There are two solutions: one is for...

What is the correct value for the vacuum Debye screening length?

The first link shows the direction of E along the line connecting the two charges only. E lines have a certain distribution around the dipole https://www.google.co.uk/search?q=electric+field+of+dipole&espv=2&biw=1680&bih=881&source=lnms&tbm=isch&sa=X&ei=BnhbVZH2GoqtU9uhgaAH&ved=0CAYQ_AUoAQ&dpr=1...

I cannot find the answer to my question anywhere on the internet so hopefully someone here will end my long search with the correct answer. It is well known that a single water molecule has a permanent electric dipole which produces a dipole intrinsic electric field. Let's say the dipole is...