Problem 4: UP 7.52 modified Consider the two charges shown in the figure to the right. (a) Find the electric potential at the points P₁, P2, P3, and P4 as labelled in the figure. F +5 mC -4 cm- P₁ 3 cm 2 cm-3 cm P3 4 cm- -2 cm- P₂ -10 MC (b) Suppose a third charge, with q = -8 mC, is placed at point P3. Determine the electric potential energy of the system of all three charges.
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