A parallel plate capacitor filled with air has a plate area A plate separation d and a capacitance C A flat slab of metal with a

Question

A parallel plate capacitor filled with air has a plate area A plate separation d and a capacitance C A flat slab of metal with a similar cross sectional area and thickness d 4 is inserted in the air gap keeping the slab parallel to the terminal plates The modified capacitance is A 4C B C 4 3 3C 4 C

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