Two parallel-plate capacitors have the same dimensions, but the space between the plates is filled with air in capacitor 1 and with plastic in capacitor 2 . The magnitude of the charge on the plates is the same in both capacitors. Compare \((a)\) the magnitudes of the electric fields \(E_{1}\) and \(E_{2}\) between the plates, \((b)\) the potential differences \(V_{1}\) and \(V_{2}\) between the plates, and \((c)\) the energies stored in the capacitors.