Faraday
Cage
The
Faraday cage is an invention that maintained his namesake. Its
application is
to keep the occupant unharmed from static electric fields.
Faraday cages take
electrostatic charges and currents and distributes them around
the exterior.
This cancels out the charge that would be on the inside of the
cage. This gif
demonstrates why.
In this example, the box is the Faraday cage. The lines are the
electric field. the electrons are the little balls.
So when the current is induced on the cage, the electrons move to
one side causing the other side to have an equal positive charge.
This causes the inside to no longer have an electric field or
current.