A capacitor is not the most efficient device for storing energy.Batteries can store more energy in much less space. For example, atypical 12 V automobile battery stores on the order of 1.00106 J.
(b) Suppose that such a capacitor was made in the form of aparallel-plate capacitor with a vacuum between the plates and an electric field no greater than 5.00106 V/m. What is the minimum area of the plates?
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