A parallel plate condenser with a dielectric of dielectric constant $K$ between the plates has a capacity $C$ and is charged to a potential $V\ volt$. The dielectric slab is slowly removed from between the plates and then reinserted. The net work done by the system in this process is
A parallel plate condenser with a dielectric of dielectric constant $K$ between the plates has a capacity $C$ and is charged to a potential $V\ volt$. The dielectric slab is slowly removed from between the plates and then reinserted. The net work done by the system in this process is
- [AIEEE 2007]
- A
Zero
- B
$\frac{1}{2}\left( {K - 1} \right)C{V^2}$
- C
$\frac{{C{V^2}\left( {K - 1} \right)}}{K}\;\;\;\;\;$
- D
$\;\left( {K - 1} \right)C{V^2}$
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