If $OP = 1\,\,cm$ and $OS = 2\,\, cm$, work done by electric field in shifting a point charge $\frac {4\sqrt 2}{27}\,\, μC$ from point $P$ to $S$ in given figure is
A$\frac {100}{3} \,\,J$
B$\frac {200}{3} \,\,J$
C$100\,\,J$
D$200\,\,J$
Medium
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A$\frac {100}{3} \,\,J$
a $\mathrm{W}_{\mathrm{ef}}=-(\Delta \mathrm{U})=-q\Delta \mathrm{V}=\mathrm{PE}_{\mathrm{i}}-\mathrm{PE}_{\mathrm{f}}$
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