A parallel-plate capacitor is connected to a battery, which maintains a potential difference V0 between its plates. A slab of dielectric constant K is slowly inserted between the plates, completely filling the space between them. If Q0 is the charge on the plates before the dielectric is inserted, how much work is done by mechanical forces on the slab in the whole process ?

A parallel-plate capacitor is connected to a battery, which maintains

1.	A parallel-plate capacitor is connected to a battery, which maintains a potential difference V0 between its plates. A slab of dielectric constant K is slowly inserted between the plates, completely filling the space between them. If Q0 is the charge on the plates before the dielectric is inserted, how much work is done by mechanical forces on the slab in the whole process ?
Answer» A parallel-plate capacitor is connected to a battery, which maintains a potential difference $V_{0}$ between its plates. A slab of dielectric constant $K$ is slowly inserted between the plates, completely filling the space between them. If $Q_{0}$ is the charge on the plates before the dielectric is inserted, how much work is done by mechanical forces on the slab in the whole process ?

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