electromagnetic radiation

My memory of college physics is that a Faraday cage works by the fact that all parts of the cage are at the same potential, including all the parts surrounding the interior, so there will be no electric field gradient in the interior. But the actual potential of the cage doesn't matter, so it...

Hi First off I apologise that this is an easy high school question. I have actually tried to google the answer last night but didnt come up with anything (well, anything I could understand anyway). Now, I have a degree is Electronics and did a bit on Electro Magnetic Radiation, impedance...