A parallel plate capacitor of plate area A and plate separation d is charged to a potential V and disconnected. A slab of dielectric constant K is then inserted between the plates of the capacitor so as to fill the space between the plates. The work done on the system during the process of inserting the slab is :

A parallel plate capacitor of plate area A and plate separation d is c

1.	A parallel plate capacitor of plate area A and plate separation d is charged to a potential V and disconnected. A slab of dielectric constant K is then inserted between the plates of the capacitor so as to fill the space between the plates. The work done on the system during the process of inserting the slab is :
Answer» `(epsilon_(0)AV^2)/d(1-1/K)` `(epsilon_(0)AV)/(2D)(1/K-1)` `(epsilon_(0)AV^2)/(2d)(1/K-1)` `(epsilon_(0)AV^2)/(2d)(1-1/K)` Answer :C

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