A parallel-plate capacitor of plate area 
and plate separation 
is charged to a potential difference 
and then the battery is disconnected. A slab of dielectric constant 3 is then inserted between the plates. The work done on the system in the process of inserting the slab is 
. The value of 
is (Take 
as the permittivity of free space)
Text Solution
Verified by ExpertsThe correct answer is:
C
Given that Area 
Separation 
Potential difference 
Dielectric constant 
Work done on the system is a change in potential energy.
So work done will be
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