The parallel combination of two air-filled parallel plate capacitors of capacitance $C$ and $nC$ is connected to a battery of voltage $V$. When the capacitors are fully charged,the battery is removed,and after that,a dielectric material of dielectric constant $K$ is placed between the two plates of the first capacitor. The new potential difference of the combined system is

  • A
    $\frac{V}{K + n}$
  • B
    $V$
  • C
    $\frac{(n + 1)V}{K + n}$
  • D
    $\frac{nV}{K + n}$

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