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Capacitors and Unit of Capacitance

28.a parallel...

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

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Q. A parallel plate capacitor of plate area

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Q. A parallel plate capacitor of plate area A and plate separation d is charged to p.d. V and then the battery is 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. If Q, E and W denote respectively the magnitude of charge on each plate, the electric field between the plates after insertion of dielectric and work done on the system in the process of inserting the slab, then-

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A

and plate separation

d

is charged to potential difference

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and then the battery is 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. If

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