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    minabruno's Avatar
    minabruno Posts: 1, Reputation: 1
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    #1

    Apr 24, 2007, 08:02 AM
    Point Charges
    Question is: Two point charges, +1 C on the left and -4 C on the right, are separated by 1 meter. At what point on the line joining the two charges is the electric field zero?
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #2

    Apr 24, 2007, 08:04 AM
    We don't like to just give away answers here.

    Think about how the field is related to the distance, then have a go at finding the equilibrium point. Does the equilibrium point even exist for the charges you have?

    Have a go at the answer, I'll be back in 40 minutes to have a look at your answer and help you if you are having trouble, if nobody else has jumped in.
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