a. Build a Faraday's Cage around your cell phone by wrapping it with aluminum foil, then use another phone to call your number, did the signal go through? What happens if there's a small, thin slit on the foil? What happens if there are several small, thin slits on the foil? b. Search for Faraday's Cage, write a 300-500 words report about it. Cite your resources