A $5\, \mu F$ capacitor is charged fully by a $220\,V$ supply. It is then disconnected from the supply and is connected in series to another uncharged $2.5\;\mu F$ capacitor. If the energy change during the charge redistribution is $\frac{ X }{100} \;J$ then value of $X$ to the nearest integer is$.....$

  • [JEE MAIN 2020]
  • A

    $4$

  • B

    $10$

  • C

    $9$

  • D

    $15$

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