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A parallel plate capacitor with air between the plates has a capacitance of 9 pF. What will be the capacitance if the distance between the plates is reduced to half and the space between them is filled by a substance of dielectric constant 7? |
1.3 pF 31.5 pF 63 pF 126 pF |
126 pF |
The correct answer is Option (4) → 126 pF |
