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Question: Point charges q1=+2.00?C and q2=?2.00?C are placed at adjacent corners of a square for which the length of each side is 3.50cm . Point a is at the center of the square, and point b is at the empty corner closest to q2. Take the electric potential to be zero at a distance far from both charges.

A) What is the electric potential at point a due to q1 and q2?

B) What is the electric potential at point b?

C) A point charge q3 = -5.00?C moves from point a to point b. How much work is done on q3 by the electric forces exerted by q1 and q2?

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