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A point charge q₁ is held stationary at the origin. A second charge q₂ is placed at point a, and the electric potential energy of the pair of charges is +5.4 x 10⁸ J. When the second charge is moved to point b, the electric force on the charge does -1.9 x 10^-8 J of work.

What is the electric potential energy of the pair of charges when the second charge is at point b?

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Category:- Physics
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