"A Faraday cage or Faraday shield is an enclosure formed by conductive material or by a mesh of such material. Such an enclosure blocks external static and non-static electric fields by channeling electricity along and around, but not through, the mesh, providing constant voltage on all sides of the enclosure." Lets say I have both a motor, and Magnetic induction switch and then lastly a small neodymium magnet to trigger it, all inside a Faraday Cage. We know that the cage nullifies all charge and also magnetic field changes(which produce electric fields). Would this mean that the cage would act like a "damper" on the magnet and motor, thereby decreasing efficiency? It would have to since the motor is producing oscillating magnetic fields, thereby electric fields which will be moving the charges inside the cage. So some of the energy would have to be lost in momentary current. I am worried that the cage would affect a moving magnet, possibly making the magnetic induction sensor not trigger and if the energy lost into the cage from the motor is considerable. Are there grounds for a faraday cage affecting inside electrical equipment of all kinds, negatively? Or am I safe to just dump it all inside a very highly insulating faraday cage Thanks in advance, -Jarfi.