MHT CET 2024 Physics question

A parallel plate capacitor is charged and the isolated. If the separation between the plates is increased, which one of the following statement is NOT correct?

(A)Charge remains constant after its is isolated
(B)Potential difference across the plates decreasesCorrect
(C)Potential difference across the plates increases
(D)Capacitance of capacitor decreases

Answer: (B)

Solution

Once the charged capacitor is isolated, the charge stays constant, so (A) is correct. Capacitance decreases as increases, so (D) is correct. Since

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Question ID VK-092872