All Questions
2
questions
3
votes
0
answers
64
views
Can cell phones send message in the elevator?
From Gauss's theorem, a closed, hollow conductor shields its interior from fields due to charges outside, but does not shield its exterior from the fields due to charges placed inside it. So my ...
- 267
5
votes
2
answers
2k
views
Are cars really Faraday cages: An anomalous observation
Background: A Faraday cage is essentially an enclosure of a conducting material. According to electrodynamics, signals cannot pass into or out of this enclosure, because when a signal approaches the ...
- 1,395