A) 7.5 N
B) 1.5 N
C) 0.5 N
D) 2.5 N
Correct Answer: A
Solution :
\[\Rightarrow F={{10}^{-7}}\times \frac{2\times 10\times 2}{\left( 10\times {{10}^{-2}} \right)}\times 2=8\times {{10}^{-5}}N\]
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