A) Statement 1 is true, Statement 2 is true, Statement 2 is the correct explanation of Statement 1.
B) Statement 1 is false, Statement 2 is true.
C) Statement 1 is true, Statement 2 is true, Statement 2 is not the correct explanation of Statement 1.
D) Statement 1 is true, Statement 2 is false.
Correct Answer: D
Solution :
Capacitance of sphere is given by : \[C=4\pi {{\in }_{0}}r\] If, C = IF then radius of sphere needed: \[r=\frac{C}{4\pi {{\in }_{0}}}=\frac{1}{4\pi \times 8.85\times {{10}^{-12}}}\] or,\[r=\frac{{{10}^{12}}}{4\pi \times 8.85}=9\times {{10}^{9}}m\] \[9\times {{10}^{9}}m\]is very large, it is not possible to obtain such a large sphere. In fact earth has radius \[6.4\times {{10}^{6}}m\]only and capacitance of earth is\[711\mu F.\]
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