A) \[\frac{1}{4\pi {{\varepsilon }_{0}}}\,\,\frac{{{q}^{2}}}{a}\]
B) \[-\frac{2.6{{q}^{2}}}{4\pi {{\varepsilon }_{0}}}\,\,\frac{{{q}^{2}}}{a}\]
C) \[+\frac{2.6}{4\pi {{\varepsilon }_{0}}}\,\,\frac{{{q}^{2}}}{a}\]
D) none of these
Correct Answer: B
Solution :
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