$A$ $12 \;pF$ capacitor is connected to a $50 \;V$ battery. How much electrostatic energy is stored in the capacitor?

  • A
    $9.4 \times 10^{-7} \;J$
  • B
    $6.4 \times 10^{-7} \;J$
  • C
    $7.5 \times 10^{-8} \;J$
  • D
    $1.5 \times 10^{-8} \;J$

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