An air-filled parallel-plate capacitor has a capacitance of 2.0ïF when the plate spacing is 1.6 mm. (a) What is the area of theplates? (b) What is the maximum voltage Vmax that can be applied tothis capacitor (before dielectric breakdown occurs)? (c) How muchcharge is stored on the capacitor when Vmax is across it? (d) Howmuch energy is stored on the capacitor when Vmax is across it? (e)A piece of Plexiglas (with a dielectric constant of 2.1) isinserted between the plates, completely filling the space betweenthe plates, while the capacitor remains connected to a battery ofemf equal to Vmax. What are the final, new capacitance, charge, andenergy?
