Question

We study the three point charges. They are held at the corners of an equilateral triangle with ℓ = 0.7 m. What is the electric potential energy of the system of three point charges? Use for the three charges
q1 = +2Q,
q2 = −3Q,
q3 = +Q,
where
Q = 120 nC
Do kq1q2/r for each pair. Sum the three.

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