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    Ghazale's Avatar
    Ghazale Posts: 3, Reputation: 1
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    #1

    Jul 17, 2009, 07:28 AM
    Find the field strength in the center of square
    Two equal positive paint charge are placed at two corners of a squares , the other two corners having negative charges of equal magnitude. Find the field strength in the center of the square in figures.
    p.s ( the figures are two square that in one of them positive charge are located at the opposite corners and they are located at the adjacent corners in the other one)
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jul 17, 2009, 11:30 AM

    Please, post your question only once. No need to post several same questions at 5 minutes interval. People that can help you are not necessarily here 24h.

    My guess is that the charges cancel each other and so, the resultant force at the centre of the square is zero.
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