Q117 / 150 · MHT CET 2024 (03 May Shift 2) · Physics

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

A
Charge remains constant after it is isolated.
Correct answer
B
Potential difference across the plates decreases.
C
Potential difference across the plates increases.
D
Capacitance of capacitor decreases.

Solution

After separation (d) is increased: Capacity decreases as $\mathrm{C}=\frac{\varepsilon_0 \mathrm{~A}}{\mathrm{~d}}$ $V=\frac{Q}{C}$ Potential increases as capacitance decreases. $\therefore \quad$ Option B is incorrect

Hence, the correct answer is option: 'B'.

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