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Capacitance (A-level only)

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Question 10

In an industrial timing circuit, an 80 μF80\ \mu\text{F}80 μF capacitor is fully charged and then allowed to discharge through a 75 kΩ75\ \text{k}\Omega75 kΩ resistor. What fraction of the capacitor's original charge has been transferred to the resistor 9.0 s after the discharge begins?

A

0.220.220.22

B

0.490.490.49

C

0.630.630.63

D

0.780.780.78

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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