MHT CET 2023 Physics question

Physics Electrostatic Potential and Capacitance MHT CET 2023

A parallel plate capacitor is charged by a battery and battery remains connected. The dielectric slab of constant 'K' is inserted between the plates and then taken out. Then electric field between the plates

(A)remains the sameCorrect
(B)increases
(C)decreases
(D)becomes zero

Answer: (A)

Solution

With the battery connected, the potential difference across the plates is fixed and the plate separation is unchanged, so the field between the plates is , which does not depend on the dielectric. While the slab is inside, in the dielectric region is as well (the extra charge

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Question ID VK-096312