A) \[7.12\times {{10}^{-10}}\,MKS\] units
B) \[8.86\times {{10}^{-12}}MKS\] units
C) \[1.02\times {{10}^{13}}\ MKS\] units
D) Cannot be calculated
Correct Answer: A
Solution :
\[\varepsilon =K{{\varepsilon }_{0}}=81\times 8.854\times {{10}^{-12}}\]\[=7.17\times {{10}^{-10}}\,MKS\,units\]
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