Point charges q1=+2.00μC and q2=−2.00μC are placed at adjacent corners of a square for which the length of each side is 5.00 cm . 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.1. What is the electric potential at point a due to q1 and q2 ?2. What is the electric potential at point b ?A point charge q3 = -6.00 μC moves from point a to point b . How much work is done on q3 by the electric forces exerted by q1 and q2 ?