As Shown in the Figure, Three Charges Are at the Vertices

question 50

Multiple Choice

As shown in the figure, three charges are at the vertices of an equilateral triangle. The charge Q is 6.7 nC, and all the other quantities are accurate to two significant figures. What is the magnitude of the net electric force on the charge Q due to the other two charges? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

• A) 2.1 × 10^-3 N
• B) 1.2 × 10^-3 N
• C) 1.0 × 10^-3 N
• D) 1.4 × 10^-3 N

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