plumiZener diode: AQA A‑Level Physics questions
AQA A-Level Physics past-paper questions on 3.13.1.2 Zener diode, 2008–2025, with mark schemes and examiner’s reports where available.
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Q04.1
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All 4 questions on Zener diode, as a list
- June 2019, Paper 3 Electronics, Q04.1 (2 marks): Draw on Figure 11 the general I−V characteristic for this diode. [2 marks] Figure 11
- June 2019, Paper 3 Electronics, Q04.2 (1 mark): Figure 12 shows a circuit that uses a 5.1 V Zener diode. The circuit causes the output W of the operational amplifier to change at a particular light intensity.
- June 2019, Paper 3 Electronics, Q04.3 (2 marks): Deduce whether a 100 Ω, 0.13 W resistor is suitable for R in Figure 12. [2 marks]
- June 2019, Paper 3 Electronics, Q04.4 (2 marks): The circuit in Figure 12 is rebuilt and the position of R is swapped with the position of the Zener diode. Explain how this affects the light intensity at which
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