The plates of a parallel-plate capacitor in vacuum are 1.40 mmapart and 2.45 m2 in area. The charge on the capacitor is 1.25 * 10^-5 C.Calculate (a) the surface charge density on the positive plate, (b) the electricfield magnitude between the plates, (c) the electric energy density betweenthe plates, and (d) the total energy stored in the field between the plates.

The plates of a parallel-plate capacitor in vacuum are 1.40 mmapart and 2.45 m2 in area. The charge on the capacitor is 1.25 * 10^-5 C.Calculate (a) the surface charge density on the positive plate, (b) the electricfield magnitude between the plates, (c) the electric energy density betweenthe plates, and (d) the total energy stored in the field between the plates.

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