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An air-filled parallel-plate capacitor with capacitance C0 stores charge Q on plates separated by distance d....

An air-filled parallel-plate capacitor with capacitance C0 stores charge Q on plates separated by distance d. The potential difference across the plates is ΔV0 and the energy stored is PEC,0. If the capacitor is disconnected from its voltage source and the space between the plates is then filled with a dielectric of constant k = 2.00, evaluate the ratios

(a) Cnew/C0,

(b) ΔVnew/ ΔV0, and

(c) PEC, new/PEC, 0.

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