# Two positive point charges are held in place, 0.74m apart.They are then moved so that their electric potential energydoubles. What is the new sparation between the charges.

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Two positive point charges are held in place, 0.74m apart.They are then moved so that their electric potential energydoubles. What is the new sparation between the charges.

2021-03-12
if two charges $$\displaystyle+{q}_{{{1}}}\ {\quad\text{and}\quad}\ +{q}_{{{2}}}$$ are seprated by a distance , the potential energy of the systemis
$$\displaystyle{U}={\left(\frac{{1}}{{4}}\pi\epsilon{o}\right)}{\left({q}_{{{1}}}\frac{{q}_{{{2}}}}{{d}}\right)}$$
initiallt d = 0.74m
if U = 2U then the distance between two charges is d/2
i.e., d = 0.37m

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