Action and use of circuit components: past paper questions
Real questions on action and use of circuit components
The newest 12 of 12 written questions. Open one to see it on the real paper.
- 0972/41 · May/June 2025 · Q8a(i)[2]
Identify components A and B in Fig. 8.1. A (a) (i)
See it on the paper → - 0972/41 · October/November 2024 · Q6b[1]
The electromotive force (e.m.f.) of the supply is E. Describe how the p.d. across the thermistor can be determined using the reading on the voltmeter.
See it on the paper → - 0972/41 · October/November 2024 · Q6c(i)[1]
State what has happened to the light intensity incident on the LDR and the temperature of the thermistor. intensity of incident light on LDR:
See it on the paper → - 0972/41 · October/November 2024 · Q6c(ii)[3]
Explain what happens to the reading on the voltmeter.
See it on the paper → - 0972/42 · May/June 2022 · Q8b(i)[1]
State the name of component A.
See it on the paper → - 0972/42 · May/June 2022 · Q10c[3]
The output of the digital circuit alone is not able to operate the buzzer. Ring the component from the list that must be connected between the output of the digital circuit and the buzzer. fuse heater relay resistor thermistor Explain your answer.
See it on the paper → - 0972/31 · May/June 2020 · Q10a(ii)[3]
The student uses the circuit to measure the resistance of component Y. Complete the diagram in Fig. 10.1 by adding electrical symbols to show an ammeter and a voltmeter correctly connected to determine the resistance of component Y.
See it on the paper → - 0972/31 · May/June 2019 · Q10b(i)[2]
The sliding contact of this device is at position A, as shown in Fig. 10.2. Describe and explain the brightness of the lamp when the sliding contact is in this position. brightness of lamp explanation
See it on the paper → - 0972/31 · May/June 2019 · Q10b(ii)[2]
The teacher moves the sliding contact from position A to position B. Describe and explain what happens to the brightness of the lamp.
See it on the paper → - 0972/31 · May/June 2019 · Q10b(iii)[1]
The teacher moves the sliding contact from position B to position C. Suggest what happens to the lamp.
See it on the paper → - 0972/42 · May/June 2019 · Q8b[1]
Fig. 8.1 shows an electronic component. Fig. 8.1 State the name of the component shown in Fig. 8.
See it on the paper → - 0972/42 · May/June 2019 · Q8c[2]
In the space below, write down the truth table for a NAND gate.
See it on the paper →
What examiners said
Some candidates correctly identified both components. Where candidates identified one component correctly it was usually the brushes. Common errors in identifying the slip rings involved confusion between a generator and a motor and calling B either split rings or a commutator.
— Examiner report, May/June 2025, 0972/41 Q8(a)(i) (Cambridge)
Most candidates correctly identified the component as a diode.
— Examiner report, May/June 2022, 0972/42 Q8(b)(i) (Cambridge)
Many candidates correctly identified the component needed as a relay. Weaker candidates often attempted to explain the use of two or more components. The phrase “ring the component” means that only one should be selected so careful reading of the question was needed. Stronger answers went on to identify that the relay was needed because the output of the logic gate was low voltage and that a highe...
— Examiner report, May/June 2022, 0972/42 Q10(c) (Cambridge)
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