A parallel plate capacitor with a dielectric slab of

Last updated: 6/10/2023

A parallel plate capacitor with a dielectric slab of dielectric constant 3 filling the space between the plates is charged to a potential V The battery is then disconnected and the dielectric slab is withdrawn It is then replaced by another dielectric slab of dielectric constant 2 If the energies stored in the capacitor before and after the dielectric slab is changed are E and E2 then E E2 is