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JEE PHYSICS MCQ: ELECTRIC POTENTIAL AND CAPACITANCE

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Statement-1: 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.
Statement-2: 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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Correct option: D

Statement-1 is false, Statement-2 is true

Option D is correct because inserting a dielectric into an isolated, charged capacitor does not change the charge but decreases the potential energy.

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