A Faraday cage is a conducting enclosure designed to block external electric fields. It is used to protect electronic equipment and sensitive information from electromagnetic interference.
A Faraday cage works by distributing any external electrical charge or radiation around the exterior of the cage, leaving the interior unaffected. This is due to the conductive material of the cage creating an equal and opposite charge to the external charge, canceling it out.
The force between the walls of a Faraday cage and a charge inside is zero. This is because the charge inside the cage is shielded from any external electric fields, and therefore there is no force acting on it from the walls of the cage.
No, a charge inside a Faraday cage cannot affect objects outside of the cage. The cage acts as a barrier, preventing any external electric fields from reaching the inside of the cage and any charge inside from affecting objects outside.
A Faraday cage can protect against most types of electromagnetic radiation, including radio waves, microwaves, and some types of light. However, it may not be effective against extremely high-frequency radiation such as gamma rays or X-rays.