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

\(\displaystyle{U}={\left(\frac{{1}}{{4}}\pi\epsilon{o}\right)}{\left({q}_{{{1}}}\frac{{q}_{{{2}}}}{{d}}\right)}\)

initiallt d = 0.74m

if U = 2U then the distance between two charges is d/2

i.e., d = 0.37m