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What is the distance between a -2.00 μC charge and a -3.00 μC charge if their...

What is the distance between a -2.00 μC charge and a -3.00 μC charge if their potential energy is 0.491 J?

To solve this question you want to think at W equals negative q triangle V where the charge q can be for example the  -2.00 μC

and the other charge   -3.00 μC becomes the source of the voltage V. The initial distance is very far away, and the final distance is "r" that you want to find. ( Do not forget the voltage V for a point charge) .

25.0 cm

15.5 cm

11.0 cm

3.14 cm
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Answer #1

Concept:- here we use the potential energy due to a pair of charge separated by a distance,

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