A) \[W=\frac{1}{4\pi {{\varepsilon }_{o}}}\frac{q}{r}\]
B) \[W=\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{q}{{{r}^{2}}}\]
C) \[W=-\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{q}{{{r}^{2}}}\]
D) W = zero
Correct Answer: D
Solution :
The work done is given by \[=q({{V}_{2}}-{{V}_{1}})=0\]
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