Question

The drawing shows six point charges arranged in a rectangle. The value of q is 8.60 μC, and the distance d is 0.120 m. Find the total electric potential at location P, which is at the center of the rectangle.

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Answer #1

Electric potential = 7kq/(√5d/2) + 3kq/(d/2) + 5kq/(√5d/2) + 7kq/(√5d/2) - 3kq/(d/2) - 5kq/(√5d/2)

E = 14kq/(√5d/2)

E = 28kq/(√5d)

E = 28(9 x109)(8.6x10-6)/(√5)(0.120)

E = 8065908.63 J/C

E = 8.066 x 106 J/C

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