A parallel plate capacitor has circular plates of $0.08\,m$ radius and $1.0 \times {10^{ - 3}}\,m$ separation. If a $P.D.$ of $100\;volt$ is applied, the charge will be
  • A$1.8 \times {10^{ - 10}}\,C$
  • B${\rm{1}}{\rm{.8}} \times {\rm{1}}{{\rm{0}}^{ - {\rm{8}}}}\,C$
  • C${\rm{1}}{\rm{.8}} \times {\rm{1}}{{\rm{0}}^{ - {\rm{20}}}}\,C$
  • D
    None of these
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