Faraday cage 2

Here is the Faraday cage video from afternoon section, complete with front row guidance from John H.



And the big nice versions, in .m4v format, are in our iTunes U in the "Demonstrations" tab and in the "Demonstrations-mobile" tab.

Remember: we will feature Faraday cage questions on the final exam, so give this demonstration and the earlier video a good look.

By the way, in each of the Faraday cage videos, we discuss the graphite in the pencil. Here are some links to Webelements.com, for carbon and, for comparison, copper. Look at the resistivity of each substance. It is the intrinsic measure of a substance that gives you an idea how well it conducts electricity: low resistivity, good conductor.

1. Carbon spec sheet.
2. Copper spec sheet.