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AP Physics C: E&M
9.1 Electric Potential Energy
BeginnerMCQMathematical17.5k
A square arrangement of four identical point charges. Four small filled circles are located at the four corners of a square of side length d, each labeled +q. Double-headed dimension arrows indicate the length of each horizontal and vertical side as d. No other lines or axes appear.
Four identical point charges held at the corners of a square.
Four identical point charges, each of charge $+q$, are held fixed at the four corners of a square with side length $d$ in vacuum. The electric potential is defined to be zero infinitely far from the charges. Which of the following expressions represents the total electric potential energy of this system of four charges?

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