# Capacitor Problems

(a)

A conducting sheet of material (see attachment 'a') has a cross-sectional area (l x w) of 10mm x 20 mm. The material has a resistivity of 103 Ω m.

Calculate the thickness, t, of the material required to give a resistance of 5k Ω.

(b)

A capacitor is formed by two parallel metal plates separated by a dielectric of relative permittivity, Er = 12 (see attachment 'b').

Calculate the thickness, t, of the dielectric required to create a capacitor of 100pF.

https://brainmass.com/engineering/electrical-engineering/single-capacitor-problems-258024

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a.) The cross-sectional area of the sheet is equal to (must be ...

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