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Capacitance (A-level only)

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Question 9

Which combination of relative permittivity and dielectric thickness produces the minimum capacitance?

A

Relative permittivity εr=3.2\varepsilon_r = 3.2εr​=3.2, Thickness d=0.80 mmd = 0.80\text{ mm}d=0.80 mm

B

Relative permittivity εr=4.5\varepsilon_r = 4.5εr​=4.5, Thickness d=1.50 mmd = 1.50\text{ mm}d=1.50 mm

C

Relative permittivity εr=6.4\varepsilon_r = 6.4εr​=6.4, Thickness d=1.60 mmd = 1.60\text{ mm}d=1.60 mm

D

Relative permittivity εr=2.1\varepsilon_r = 2.1εr​=2.1, Thickness d=1.40 mmd = 1.40\text{ mm}d=1.40 mm

Markscheme

Capacitance (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Capacitance (A-level only)

63 exam-style questions on AQA A Level Physics Capacitance (A-level only), covering Capacitance (A-level only), Parallel plate capacitor (A-level only), Energy stored by a capacitor (A-level only), and Capacitor charge and discharge (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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