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Homework Help: Electric charge equally distributed in rice grains

  1. Mar 2, 2010 #1
    1. The problem statement, all variables and given/known data

    How many rice grains are needed for an electric charge of a certain strength (I dont remember the value now but is it really relevant?) to be equally distributed amongst them?

    2. Relevant equations

    I hope you can answer that :)

    3. The attempt at a solution

    I can only guess. Is there a formula for this? Whats the logic behind this. I was given such a question on a test.
     
  2. jcsd
  3. Mar 2, 2010 #2

    ideasrule

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    Homework Helper

    The exact value of the charge is very important. If it turns out to be precisely 3 times the charge on an electron, we know that 3 rice grains are needed.
     
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