A) \[{{10}^{6}}\,m\]
B) \[{{10}^{7}}m\]
C) \[{{10}^{9}}\,m\]
D) \[{{10}^{8}}\,m\]
Correct Answer: C
Solution :
\[C=4\pi {{\varepsilon }_{0}}R\], \[R=\frac{C}{4\pi {{\varepsilon }_{0}}}\] Þ \[R=(1/9)\times 9\times {{10}^{9}}={{10}^{9}}m\]
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