Two condensers of capacities $2C$ and $C$ are joined in parallel and charged upto potential $V$. The battery is removed and the condenser of capacity $C$ is filled completely with a medium of dielectric constant $K$. The $p.d.$ across the capacitors will now be
Two condensers of capacities $2C$ and $C$ are joined in parallel and charged upto potential $V$. The battery is removed and the condenser of capacity $C$ is filled completely with a medium of dielectric constant $K$. The $p.d.$ across the capacitors will now be
- [IIT 1988]
- A
$\frac{{3V}}{{K + 2}}$
- B
$\frac{{3V}}{K}$
- C
$\frac{V}{{K + 2}}$
- D
$\frac{V}{K}$
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- [JEE MAIN 2021]
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