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Why the Earth is electro-neutral?

  1. Jan 11, 2007 #1
    Is the Solar system electro-neutral?
    Is the Milk Way Galaxy electro-neutral?
    Then why is the Earth electro-neutral?
  2. jcsd
  3. Jan 12, 2007 #2
    positive and negatives cancel each other out
  4. Jan 12, 2007 #3

    Andrew Mason

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    Science Advisor
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    Yes. Yes. And: if it wasn't, it would attract opposite charge until it was.

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