plumiInverting amplifier configuration: AQA A‑Level Physics questions
AQA A-Level Physics past-paper questions on 3.13.4.1 Inverting amplifier configuration, 2008–2025, with mark schemes and examiner’s reports where available.
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Q03.2
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All 11 questions on Inverting amplifier configuration, as a list
- June 2025, Paper 3 Electronics, Q03.2 (1 mark): Explain what is meant by a virtual earth. [1 mark]
- June 2023, Paper 3 Electronics, Q04.2 (2 marks): Figure 9 shows the operational amplifier being used in an inverting amplifier circuit. Figure 9 Annotate Figure 9 with: • an X to indicate a point that acts as
- June 2023, Paper 3 Electronics, Q04.3 (2 marks): The value of Rf in the feedback loop in Figure 9 is increased. State and explain the effect of this change on the bandwidth of the inverting amplifier. [2 marks
- June 2022, Paper 3 Electronics, Q01.1 (1 mark): Draw an X on the circuit in Figure 1 to indicate a virtual earth point. [1 mark]
- June 2022, Paper 3 Electronics, Q01.2 (2 marks): Show that the closed loop voltage gain for the amplifier in Figure 1 is given by: State any assumptions made in your answer. [2 marks] assumptions Rf Rin out Vi
- November 2020, Paper 3 Electronics, Q04.3 (2 marks): The intensity of radiation incident on the photodiode remains at 3.0 W m−2. Deduce whether the light-emitting diode (LED) in Figure 6 is on or off. [2 marks]
- June 2017, Paper 3 Electronics, Q01.1 (1 mark): Label Figure 1 with an X to show the point which is a virtual earth. [1 mark]
- June 2017, Paper 3 Electronics, Q01.3 (2 marks): Derive the expression for the inverting amplifier gain [2 marks] Vout V in = − Rf Rin
- June 2017, Paper 3 Electronics, Q01.5 (2 marks): The mixer is tested using the input signals to channels 1 and 2 with the amplitudes shown in Figure 2. Calculate the amplitude of the output voltage Vout produc
- June 2017, Paper 3 Electronics, Q01.6 (1 mark): Describe how the function of the audio mixer could be improved by changing the two input resistors from fixed values to variable values. [1 mark]
- Specimen, Paper 3 Electronics, Q03.1 (2 marks): Figure 2 shows a circuit that includes an ideal operational amplifier. A student uses this circuit to amplify the signal from the sensor before further processi
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