Storing charge and energy between two conductors.
Capacitors and capacitance, the ideal battery, parallel-plate, spherical and cylindrical capacitors, series and parallel combinations and a general method for networks, the force between plates, energy stored and the energy density of a field, dielectrics and polarization, capacitors filled with dielectrics, Gauss's law with dielectrics and the displacement vector, corona discharge and the van de Graaff generator.