Cambridge AS & A Level Physics
19.3Discharging a capacitor
Discharging a capacitor in Cambridge AS & A Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
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Learning objectives
What the syllabus expects you to be able to do.
- 19.3.1Analyse graphs of p.d., charge and current against time for a discharging capacitor.
- 19.3.2Recall and use the time constant τ = RC.
- 19.3.3Use exponential decay equations for current, charge or p.d. during discharge.
Lessons
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Capacitor discharge and the time constant
45 min
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Sample question
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