Hi Members,
Could anyone enlighten me ragarding a question which has been puzzling me for a while.
I understand the principle of the Faraday cage, but how would you calculate the force exerted on a body within the cage as the 'charge' on the cage fell when it was earthed.

Any info would be wonderful.

what force are you referring to?

An EMF perhaps? Long time since I studied Physics. If a charge on the cage was earthed, this would mean a current, however small, would be flowing through the cage, so if my memory is correct there would be a 'electromotive force' at a right angle??? I basically want to know if a particle inside the cage would be forced into the 'center' of the cage.

Or it may have been something to do with a 'force' produced by a collapsing electric field related to a lightening strike on a Faraday cage which was mentioned on a TV program which I am thinking of.....Enlighten me .

I got sth about Faraday cage, but may not be useful
YouTube - Faraday Cage