CapacitanceHard

Question

The terminals of a battery of emf V are connected to the two plates of a parallel plate capacitor. If the space between the plates of the capacitor is filled with an insulator of dielectric constant K, then :

Options

A.the electric field in the space between the plates does not change
B.the electric field in the space between the plates does not change
C.the charge stored in the capacitor increases
D.the electrostatic energy stored in the capacitor decreases

Solution

E =           ⇒    remains constant
C′ = KC        ⇒   Increase
Q′ = KQ        ⇒    Increase
U = KCV2 = KU ⇒    Increase

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