Find the breakdown voltage of the given combination in $KV$.

  • A
    $1$
  • B
    $4$
  • C
    $6.67$
  • D
    $3$

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In the circuit shown in the figure, if the point $R$ is earthed and point $P$ is given a potential of $+1800 \, V$, then the charges on $C_2$ and $C_3$ are respectively:

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