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Fields and their consequences (A-level only)

Fields and their consequences (A-level only)

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Question 88

A pressure sensor uses a parallel-plate capacitor consisting of two square metal plates of side length w w\,w separated by an air gap of distance ggg. This arrangement has a capacitance CCC.

A modified version of the sensor is designed with square plates of side length 2.5w 2.5w\,2.5w and a gap distance of 1.5g. Additionally, the air gap is filled with a flexible polymer dielectric of relative permittivity εr=1.2\varepsilon_r = 1.2εr​=1.2.

What is the capacitance of the modified sensor in terms of CCC?

A

2.0C2.0 C2.0C

B

4.2C4.2 C4.2C

C

5.0C5.0 C5.0C

D

7.5C7.5 C7.5C

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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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