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Fields and their consequences (A-level only)

Fields and their consequences (A-level only)

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Question 152

Capacitor PPP, filled with a dielectric material of relative permittivity εr\varepsilon_rεr​, has circular plates of radius R R\,R separated by a distance ddd. The capacitance of this arrangement is CCC.

Capacitor Q Q\,Q is constructed using circular plates of radius 4R 4R\,4R separated by a distance 3d3d3d, and contains a dielectric with a relative permittivity of εr8\displaystyle \frac{\varepsilon_r}{8}8εr​​.

What is the capacitance of capacitor QQQ?

A

16C\frac{1}{6} C61​C

B

23C\frac{2}{3} C32​C

C

83C\frac{8}{3} C38​C

D

163C\frac{16}{3} C316​C

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Fields and their consequences (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Fields and their consequences (A-level only)

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