A two identical point charges of q 150 x 10-8 c are, Ask an Expert

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a) Two identical point charges of q = +1.50 x 10^-8C are separated by a distance of 1.10 m. What is the minimum amount of work required by an external force to move them closer together so that they are only 0.60 m apart?

b) What is the electric potential energy of three equal positive charges of 1.20 µC when they are arranged to form a triangle 2.50 x 10^-3 m on a side?

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