1. According to K-TEC information, On-Line Ground Fault Monitoring
  what percent of ground faults occur slowly over time? 

2. What is the name of a GFCI device profiled at this Underwriters Laboratory web page: http://www.ul.com/media/newsrel/nr102903.html which has been recalled as of October 3, 2003?

 Answer: The ______ Edge.

3. In this excellent article located at: http://www.codecheck.com/gfci_principal.htm  by Sam Goldwasser, what is one kitchen appliance which needs a GFCI protection no matter where it is installed? Hint: this is the last aspect mentioned in this article.

4. In this lab experiment described at  http://www.ee.duke.edu/~cec/final/node93.html what is the electrical technical reason  that the GFCI senses the difference in current between the hot and neutral wires?