- #1
stanley
- 2
- 0
I've been reading about faraday cages. The way I see, it works because the condutor will separate the charges so that the eletric charge inside is 0.
Then I saw a lecture in which the professor was carrying a radio and the signal stopped as soon as he entered the cage however we were still able to hear him talking through the speakers, he said that's because the speakers were in a much higher frequency.
My questions are:
Then I saw a lecture in which the professor was carrying a radio and the signal stopped as soon as he entered the cage however we were still able to hear him talking through the speakers, he said that's because the speakers were in a much higher frequency.
My questions are:
- Why the fact that the eletric charge inside the condutor being 0 blocks electromagnetic fields?
- Why aren't faraday cages effective for high frequency waves?
- Why aren't they effective for very low frequencies?
- Are there better ways to block low frequency waves than with a faraday cage?