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Question: A -4.0-µC charge is situated at the origin of an xy-coordinate system. What is the magnitude and direction of an electric potential at x = 6.0 m?

A) 4000 V along the +x-axis

B) 1500 V along the +x-axis

C) 6000 V along the +x-axis

D) 4000 V with no direction

E) -6000 V with no direction

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