Twenty seven drops of same size are charged at $220\, \mathrm{~V}$ each. They combine to form a bigger drop. Calculate the potential of the bigger drop. (In $\mathrm{~V}$)

  • [NEET 2021]
  • A

    $1980$

  • B

    $1320$

  • C

    $1520$

  • D

    $660$

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