The capacitance C of a condenser with two plates each of area A separated by a dielectric of thickness t is

where is the permittivity of free space and is the dielectric constant of the material between the plates. Select a dielectric by scanning data in Appendix A, Tables A7 and Table A8, first to maximize C and second to minimize it, for a given A and t.

Data From Appendix Table A7

Data From Table A8

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A