Three Point Charges, Q₁, Q₂, and Q₃, Are Located at the Vertices

question 26

Multiple Choice

Three point charges, q₁, q₂, and q₃, are located at the vertices of an equilateral triangle. If q₁ = q₂, what value must q₃ have so that the total potential energy of the arrangement is zero?

• A) q₁
• B) 0.5 q₁
• C) −0.5 q₁
• D) (q₁ + q₂)/2
• E) no value will have this result

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