EM4.5 Faraday Cage

Very short and sweet demo that demonstrates electrostatic shielding, a topic associated with Gauss's law. Tune a small hand-held radio to some FM radio station, and then place the radio inside a small aluminum cage. The signal completely disappears. (At this stage in the course, they haven't encountered EM waves, but most are satisfied with a simple explanation, such as "associated with radio waves are electric fields that cannot penetrate the conducting shell".) Should make clear why a radio antenna must be placed outside of the frame of a car.

Equipment Location: Shelf D5-4