Hello everyone. I can't get the 2nd to last question on this problem... It says: A parallel-plate air-filled capacitor having area 38 cm2 and plate spacing 2.0 mm is charged to a potential difference of 450 V. Find the following values. (a) the capacitance correct check mark pF (b) the magnitude of the charge on each plate correct check mark nC (c) the stored energy correct check mark µJ (d) the electric field between the plates wrong check mark V/m (e) the energy density between the plates J/m3 So I figured because the capacitor is a conductor, i know that the e-field just outside a conductor is E = Area Charge Density/Eo or E = (Q/A)/Eo; E = (7.57nC)/(.0038cm^2)/8.85e-12 = 225096639 N/C. Which was wrong, any ideas why? Thanks.