Four 20-µC Point Are at the Corners of a Rectangle with with Sides

question 11

Multiple Choice

Four 2.0-µC point are at the corners of a rectangle with sides of length 3.0 cm and 4.0 cm.What is the electric potential (relative to infinity) at the midpoint of the rectangle? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

• A)1.3 MV
• B)2.9 MV
• C)3.5 MV
• D)7.8 MV

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