A condenser has a capacity $2\,\mu \,F$ and is charged to a voltage of $50\, V$. The energy stored is
  • A$25 \times 10^5$ $Joule$
  • B$25$ $Joule$
  • C$25 \times 10$ $erg$
  • D$25 \times 10^3$ $erg$
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