Potential Difference at Center of Square with q = 0.1uC

AI Thread Summary
The discussion revolves around calculating the electric field (E) at the center of a square due to point charges placed at its corners, with a specific charge value of q = 0.1 µC. Participants express confusion regarding the significance of the values +29, -29, +9, and -9 at the corners, which are likely intended to represent the magnitudes and signs of the charges. Clarification is sought on how these corner charges influence the resultant electric field at the center. A more detailed description or diagram of the problem is requested to facilitate understanding. Accurate calculations of E's magnitude and direction depend on these charge values and their arrangement.
Avitoholis
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Magnitude and direction of E

Ok, hear is the question I need to answer, "What is "E" in direction and magnitude at the centre of a square if q=0.1uC." Now my question is about the diagram that is provided I don't know what the values at each of the corners of the square are for, they are simply +29,-29,+9 and -9. Any ideas would be great.
 
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You need to give a more specific description of the problem, or attach a sketch of the drawing in the problem.
 

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