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Homework Help: Static Electricity

  1. May 15, 2010 #1
    1. The problem statement, all variables and given/known data

    I was just wondering if someone could help explain this problem I've been having. A lot of textbooks I've been studying from are describing how two insulators can become charged, but then don't mention whether an insulator can be earthed - it only mentions "charged conductors" being earthed using a conducting wire. Any help would be appreciated as to whether insulators can be earthed or not - only conductors.


    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. May 15, 2010 #2
    An insulator cannot be earthed because it is an insulator - it doesn't conduct electricity by definition.

    An insulator can hold a static charge on it's surface but this is not to be confused with being conductive.
     
  4. May 15, 2010 #3
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