Round 11: Tossup 6

High amounts of this quantity are generated by an electrical double layer in namesake “super” devices used to deliver power very quickly. It’s not (15[1])drag, but this quantity’s “parasitic” type causes crosstalk between unconnected circuit elements. For a two-component circuit, the time constant equals the product of resistance and this quantity. This quantity equals (*) permittivity times area over separation distance, and it is increased by a dielectric. This quantity is defined as the amount of electric charge stored per unit voltage. For 10 points, name this quantity measured in farads and generated by parallel plates. ■END■

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