The dielectric material between the plates of a parallel plate capacitor always has some nonzero conductivity &. Let A represent the area of each plate and d the distance between them. Let 4 represent the dielectric constant of the material.
(a) Show that the resistance R and the capacitance C of the capacitor are related by
(b) Find the resistance between the plates of a 14.0-nF capacitor with a fused quartz dielectric. RC = kЄ0/σ |

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