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Analogue signal processing: AQA A‑Level Physics questions

Every AQA A-Level Physics exam question on 3.13.3 Analogue signal processing, 2016–2025, with its mark scheme and examiner’s report.

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2,714 questions

  1. Q04.2

    June 2025 · Paper 3 Electronics

    2 marks3.13.3 Analogue signal processing
    The whole paper ↗
    June 2025 Paper 3 Electronics, question 04.2: Figure 12 shows the first stage of a radio receiver. Figure 12 Explain the role of the LC circuit in the first stage of the receiver. [2 marks]

  2. Q04.3

    June 2025 · Paper 3 Electronics

    2 marks3.13.3 Analogue signal processing
    The whole paper ↗
    June 2025 Paper 3 Electronics, question 04.3: Two different LC circuits A and B are available for the first stage of a radio receiver tuned to a particular radio station. One of these circuits is to be chos

  3. Q03.1

    June 2024 · Paper 3 Electronics

    1 mark3.13.3 Analogue signal processing
    The whole paper ↗
    June 2024 Paper 3 Electronics, question 03.1: Which quantity in the LC circuit is analogous to the mass in a mass–spring system? Tick () one box. [1 mark] C 1 C L 1 L

  4. Q03.2

    June 2024 · Paper 3 Electronics

    3 marks3.13.3 Analogue signal processing
    The whole paper ↗
    June 2024 Paper 3 Electronics, question 03.2: A radio receiver uses a parallel LC tuned circuit to select a radio station. Figure 9 shows the response of the tuned circuit. Figure 9 Calculate the quality fa

  5. Q02.1

    November 2020 · Paper 3 Electronics

    1 mark3.13.3 Analogue signal processing
    The whole paper ↗
    November 2020 Paper 3 Electronics, question 02.1: The circuit is tuned to receive a radio station transmitting at a frequency of 1053 kHz. Calculate the value of the capacitance needed to receive this station.

  6. Q02.2

    November 2020 · Paper 3 Electronics

    2 marks3.13.3 Analogue signal processing
    The whole paper ↗
    November 2020 Paper 3 Electronics, question 02.2: The circuit is retuned to receive a different radio station by setting the variable capacitor to a value of 9.3 pF. Table 2 shows the capacitance range of four

  7. Q02.3

    November 2020 · Paper 3 Electronics

    2 marks3.13.3 Analogue signal processing
    The whole paper ↗
    November 2020 Paper 3 Electronics, question 02.3: Figure 5 shows part of the frequency response curve for a different filter circuit. Figure 5 Determine the bandwidth of the filter circuit. [2 marks] bandwidth

  8. Q02.4

    November 2020 · Paper 3 Electronics

    1 mark3.13.3 Analogue signal processing
    The whole paper ↗
    November 2020 Paper 3 Electronics, question 02.4: Calculate the Q factor of the filter circuit in Question 02.3. [1 mark] Q factor =

  9. Q02.5

    November 2020 · Paper 3 Electronics

    1 mark3.13.3 Analogue signal processing
    The whole paper ↗
    November 2020 Paper 3 Electronics, question 02.5: The radio station is tuned using a different filter circuit with a very low Q factor. State and explain one effect of this change on the sound heard by a listen

  10. Q03.1

    June 2017 · Paper 3 Electronics

    2 marks3.13.3 Analogue signal processing
    The whole paper ↗
    June 2017 Paper 3 Electronics, question 03.1: Calculate the value of the capacitance when the circuit resonates at a frequency of 910 kHz. [2 marks] capacitance = pF

  11. Q03.2

    June 2017 · Paper 3 Electronics

    3 marks3.13.3 Analogue signal processing
    The whole paper ↗
    June 2017 Paper 3 Electronics, question 03.2: Draw on Figure 9 an ideal response curve for the resonant circuit, labelling all relevant frequency values based upon a 10 kHz bandwidth. [3 marks] Figure 9

  12. Q03.3

    June 2017 · Paper 3 Electronics

    2 marks3.13.3 Analogue signal processing
    The whole paper ↗
    June 2017 Paper 3 Electronics, question 03.3: The Q-factor for the practical tuning circuit has a smaller value than the ideal one assumed in question 03.2. Discuss the changes the listener might notice whe

  13. Q04.1

    Specimen · Paper 3 Electronics

    2 marks3.13.3 Analogue signal processing
    The whole paper ↗
    Specimen Paper 3 Electronics, question 04.1: An engineer uses copper cable to connect an intercom system between her office and workshop. The signals have to travel a long distance and she finds that inter

  14. Q04.2

    Specimen · Paper 3 Electronics

    1 mark3.13.3 Analogue signal processing
    The whole paper ↗
    Specimen Paper 3 Electronics, question 04.2: An engineer uses copper cable to connect an intercom system between her office and workshop. The signals have to travel a long distance and she finds that inter

  15. Q04.3

    Specimen · Paper 3 Electronics

    2 marks3.13.3 Analogue signal processing
    The whole paper ↗
    Specimen Paper 3 Electronics, question 04.3: An engineer uses copper cable to connect an intercom system between her office and workshop. The signals have to travel a long distance and she finds that inter
All 15 questions on Analogue signal processing, as a list
  1. June 2025, Paper 3 Electronics, Q04.2 (2 marks): Figure 12 shows the first stage of a radio receiver. Figure 12 Explain the role of the LC circuit in the first stage of the receiver. [2 marks]
  2. June 2025, Paper 3 Electronics, Q04.3 (2 marks): Two different LC circuits A and B are available for the first stage of a radio receiver tuned to a particular radio station. One of these circuits is to be chos
  3. June 2024, Paper 3 Electronics, Q03.1 (1 mark): Which quantity in the LC circuit is analogous to the mass in a mass–spring system? Tick () one box. [1 mark] C 1 C L 1 L
  4. June 2024, Paper 3 Electronics, Q03.2 (3 marks): A radio receiver uses a parallel LC tuned circuit to select a radio station. Figure 9 shows the response of the tuned circuit. Figure 9 Calculate the quality fa
  5. November 2020, Paper 3 Electronics, Q02.1 (1 mark): The circuit is tuned to receive a radio station transmitting at a frequency of 1053 kHz. Calculate the value of the capacitance needed to receive this station.
  6. November 2020, Paper 3 Electronics, Q02.2 (2 marks): The circuit is retuned to receive a different radio station by setting the variable capacitor to a value of 9.3 pF. Table 2 shows the capacitance range of four
  7. November 2020, Paper 3 Electronics, Q02.3 (2 marks): Figure 5 shows part of the frequency response curve for a different filter circuit. Figure 5 Determine the bandwidth of the filter circuit. [2 marks] bandwidth
  8. November 2020, Paper 3 Electronics, Q02.4 (1 mark): Calculate the Q factor of the filter circuit in Question 02.3. [1 mark] Q factor =
  9. November 2020, Paper 3 Electronics, Q02.5 (1 mark): The radio station is tuned using a different filter circuit with a very low Q factor. State and explain one effect of this change on the sound heard by a listen
  10. June 2017, Paper 3 Electronics, Q03.1 (2 marks): Calculate the value of the capacitance when the circuit resonates at a frequency of 910 kHz. [2 marks] capacitance = pF
  11. June 2017, Paper 3 Electronics, Q03.2 (3 marks): Draw on Figure 9 an ideal response curve for the resonant circuit, labelling all relevant frequency values based upon a 10 kHz bandwidth. [3 marks] Figure 9
  12. June 2017, Paper 3 Electronics, Q03.3 (2 marks): The Q-factor for the practical tuning circuit has a smaller value than the ideal one assumed in question 03.2. Discuss the changes the listener might notice whe
  13. Specimen, Paper 3 Electronics, Q04.1 (2 marks): An engineer uses copper cable to connect an intercom system between her office and workshop. The signals have to travel a long distance and she finds that inter
  14. Specimen, Paper 3 Electronics, Q04.2 (1 mark): An engineer uses copper cable to connect an intercom system between her office and workshop. The signals have to travel a long distance and she finds that inter
  15. Specimen, Paper 3 Electronics, Q04.3 (2 marks): An engineer uses copper cable to connect an intercom system between her office and workshop. The signals have to travel a long distance and she finds that inter

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