A charge of ${10^{ - 9}}\,C$ is placed on each of the $64$ identical drops of radius $2\,cm$. They are then combined to form a bigger drop. Find its potential

  • A

    $7.2 \times {10^3}\,V$

  • B

    $7.2 \times {10^2}\,V$

  • C

    $1.44 \times {10^2}\,V$

  • D

    $1.44 \times {10^3}\,V$

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  • [JEE MAIN 2024]