A Square Is 1

question 22

Multiple Choice

A square is 1.0 m on a side.Point charges of +4.0 μC are placed in two diagonally opposite corners.In the other two corners are placed charges of +3.0 μC and -3.0 μC.What is the potential (relative to infinity) at the midpoint of the square? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

• A)1.0 × 10⁴ V
• B)1.0 × 10⁵ V
• C)1.0 × 10⁶ V
• D)0 V
• E)infinite

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