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Electric charges of - 10 nC, + 10 nC, and + 20 nC are located in...

Electric charges of - 10 nC, + 10 nC, and + 20 nC are located in the x-y plane at positions of (0, 0.5), (0, -0.5), and (0.5, 0), respectively, where the positions are expressed in m. What is the value of the electric potential at the position of the 20 nC charge, and what is its electrical potential energy?

a. 360 V and 14 micro joules

b. 0 V and 0 J

c. -250V and -5 micro joules

d. 250 V and 5 micro joules

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