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    Question

    Two charges, +3 µC and –3 µC, are placed 1 m apart

    in vacuum. What is the electrostatic potential energy of the system?
    A –0.27 J Correct Answer Incorrect Answer
    B +0.0081 J Correct Answer Incorrect Answer
    C –0.0081 J Correct Answer Incorrect Answer
    D 0 J Correct Answer Incorrect Answer

    Solution

    The electrostatic potential energy (U) of a system of two-point charges q ₁  and q ₂  separated by a distance r is given by the formula: The electrostatic potential energy of the system is approximately −0.081J.

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