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MHT CET Physics question

PhysicsElectrostatic Potential and CapacitanceMHT CET

A parallel plate capacitor with air between the plates has a capacitance of 8 pF. The separation between the plates is now reduced by half and the space between them is filled with medium of dielectric constant 5. The value of capacitance of a capacitor in the second case is

Answer: (C)

Solution

, so the new capacitance is pF; 40 pF ignores the halving of

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Question ID VK-075481