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Consider a dielectric with a dielectric constant K = 2.6 and a dielectric strength of 2.0×107...

Consider a dielectric with a dielectric constant K = 2.6 and a dielectric strength of 2.0×107 Vm^(−1) . A piece of this dielectric is placed between the plates of a parallel plate capacitor, completely filling the volume between the plates.

a. What is the energy density inside the capacitor when the electric field between the plates is 80% of the dielectric strength.

b. When the capacitor is connected to a battery with a 500.0 V voltage, the electric field is equal to 80% of the dielectric strength. What is the area of the plates, A, if the capacitor stores 0.200 mJ.

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