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MHT CET 2025 Physics question

PhysicsElectrostatic Potential and CapacitanceMHT CET 2025

A capacitor of unknown capacity is connected across a battery of V volt. The charge stored in it Q coulomb. When potential across the capacitor is reduced by volt, the charge stored in it becomes coulomb. The potential V is

Answer: (A)

Solution

Charge on a capacitor is . Initially . After the potential is reduced by , . Subtracting: . Then

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Question ID VK-102907