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Lightning bolt electrons problem

  1. Feb 10, 2008 #1
    A strong lightning bolt transfers about 25 C to Earth. How many electrons are transferred?

    1 electrons = 1.60E-19

    so.. 25 / 1.60 E -19 = 1.5625E-18 electrons

    but the answer that my teacher gave us is 1.6 E 20 electrons

    what did i do wrong?
  2. jcsd
  3. Feb 10, 2008 #2
    Caclculator error. Watch how you enter E-19.
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