Action and use of circuit components: past paper questions
Real questions on action and use of circuit components
The newest 20 of 27 written questions. Open one to see it on the real paper.
- 0625/43 · May/June 2026 · Q7a[1]
The connecting wires in the circuit are made of metal. State the name of the particles that flow in the metal wires.
See it on the paper → - 0625/43 · May/June 2026 · Q7b(i)[1]
State the name of component X.
See it on the paper → - 0625/43 · May/June 2026 · Q7b(ii)[3]
The resistance of component X is 400 Ω when the light shines on it. Calculate the reading on the voltmeter. reading on the voltmeter = V
See it on the paper → - 0625/43 · May/June 2026 · Q7c[3]
The brightness of the light shining on component X is reduced. The resistance of component X increases. State the effect of this change on: the current in the fixed resistor
See it on the paper → - 0625/41 · May/June 2025 · Q8a(i)[2]
Identify components A and B in Fig. 8.1. A (a) (i)
See it on the paper → - 0625/11 · May/June 2023 · Q28[1]
Which symbol represents an electric heater?
See it on the paper → - 0625/11 · May/June 2023 · Q29[1]
Which switches must be closed for the bell to ring without lighting the lamp?
See it on the paper → - 0625/43 · May/June 2022 · Q8a(i)[1]
State the name of component X.
See it on the paper → - 0625/43 · May/June 2022 · Q8a(ii)[1]
The potential difference (p.d.) across component Y is measured with a voltmeter. On Fig. 8.1, draw the symbol for the voltmeter and its connections to the circuit.
See it on the paper → - 0625/43 · May/June 2022 · Q8b[1]
Suggest a practical use for component X.
See it on the paper → - 0625/43 · October/November 2021 · Q9b[1]
Describe a practical use for a thermistor.
See it on the paper → - 0625/43 · May/June 2021 · Q8b[1]
Draw the symbol for a NOR gate.
See it on the paper → - 0625/43 · May/June 2021 · Q8c(i)[1]
From Table 8.1, deduce: 1. the name of logic gate X 2. the name of logic gate Y.
See it on the paper → - 0625/43 · May/June 2021 · Q8c(ii)[2]
Logic gate Z is a NAND gate. Complete column F of Table 8.1.
See it on the paper → - 0625/42 · February/March 2021 · Q9a[2]
Write down the truth table for an OR gate.
See it on the paper → - 0625/42 · February/March 2021 · Q9b[1]
Draw the symbol for a NOR gate.
See it on the paper → - 0625/42 · February/March 2021 · Q9c(ii)[3]
State which type of gate is used for gate X. Explain your answer. statement explanation
See it on the paper → - 0625/21 · October/November 2020 · Q32[1]
In which circuit is there just a single lamp lit?
See it on the paper → - 0625/43 · October/November 2020 · Q8b[1]
Fig. 8.3 shows the symbol for a logic gate. X Y Z Fig. 8.3 The truth table for this logic gate is shown in Table 8.1. Table 8.1 input X input Y output Z 0 0 0 0 1 0 1 0 0 1 1 1 State the name of this logic gate.
See it on the paper → - 0625/43 · October/November 2020 · Q8c(i)[3]
A student designs the circuit shown in Fig. 8.4. A B C E D Fig. 8.4 Complete the truth table for this circuit in Table 8.2. Table 8.2 A B 0 0 0 1 1 0 1 1 C D E
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, 0625/41 Q8(a)(i) (Cambridge)
Most candidates correctly identified component X as a light dependent resistor (LDR). A common incorrect answer from weaker candidates was resistor, which was too imprecise to gain credit.
— Examiner report, May/June 2022, 0625/43 Q8(a)(i) (Cambridge)
Almost all candidates drew the correct symbol for a voltmeter connected in parallel with Y on the figure. A small number of candidates made no attempt at this question.
— Examiner report, May/June 2022, 0625/43 Q8(a)(ii) (Cambridge)
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