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Potential energy of earth

  1. Oct 24, 2009 #1
    the potential energy of earth is infinity or zero?
     
  2. jcsd
  3. Oct 24, 2009 #2

    HallsofIvy

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    Staff Emeritus
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    You question does not supply enough information for an answer. "Potential energy" is, by definition, always relative to some point. That is, for example, an object with mass m has potential energy mgh relative to a point h meters below it, potential energy -mgh relative to a point h meters above it, and, or course, potential energy 0 relative to its own height.
     
  4. Oct 25, 2009 #3
    thqs fr ur reply sir bt i still have doubt that we do earthing fr electrical connections sir dat means we can say dat earth has infinite potential to receive the charges
     
  5. Oct 25, 2009 #4

    russ_watters

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    Staff: Mentor

    You'll need to stop talking in text speak to get answers here. However, there is more than one form of potential energy...electric and gravitational are two examples.
     
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