A dielectric slab is inserted between th...

A dielectric slab is inserted between the plates of an isolated capacitor. The force between the plates will

increase

decrease

remain unchanged

become zero

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A dielectric is inserted between the plates of an isolated fully-charged capacitor. The dielectric completely fills the space between the plates. The magnitude of electrostatic force on either metal plate decreases, as it was before the insertion of dielectric medium. Due to insertion of dielectric slab in an isolated parallel plate capacitor (the dielectric completely fills the space between the plates), the electrostatic potential energy of the capacitor decreases.

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