Exercise 23.17 What is the electric potential at point a due to q1 and 92? Expre

Question

Exercise 23.17 What is the electric potential at point a due to q1 and 92? Express your answer with the appropriate units. Point charges g +2.00 uC and g2 -2.00 C are placed at adjacent corners of a square for which the length of each side is 1.00 em Point a is at the center of the square, and point b is at the empty comer closest to q2 Take the electric potential to be zero at a distance far from both charges. VValue Units Part B What is the electric potential at point b? Express your answer with the appropriate units. VValue Part C A point charge g 2.00 uC moves from point a to point b. How much work is done on gs by the electric forces exerted by q, and q? Express your answer with the appropriate units was = | Value Units

Explanation / Answer

partA] Va = kq1/r + kq2/r = k(q1+q2)/r = 0

partB] Vb = kq1/L + kq2/[L sqrt 2] = 9e9*2e-6/0.0141 + 9e9*-2e-6/0.01 = -523404 V

partC] work done = - q3[Vb-Va] = 2e-6[-523404] = -1.047 J

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