0654.P4.5.01 — Know that a conductor moving across a magnetic field or a changing magnetic field linking with a conductor can induce an e.m.f. across the c: past paper questions
Real questions on 0654.p4.5.01 — know that a conductor moving across a magnetic field or a changing magnetic field linking with a conductor can induce an e.m.f. across the c
The newest 12 of 12 written questions. Open one to see it on the real paper.
- 0973/41 · October/November 2023 · Q9a(i)[2]
Explain why: peak X is positive and peak Y is negative peak Y has a larger magnitude than peak X.
See it on the paper → - 0973/41 · October/November 2023 · Q9b[2]
When writing up the results, the student is not sure whether to write about the induced potential difference or the induced electromotive force (e.m.f.). Place ticks in Table 9.1 against each statement that is correct for potential difference and for electromotive force (e.m.f.). You may place one or two ticks in each...
See it on the paper → - 0973/42 · May/June 2023 · Q6c(ii)[3]
Describe how the output voltage across the secondary coil is produced.
See it on the paper → - 0973/42 · May/June 2023 · Q6c(iii)[2]
Fig. 6.2 shows a step‑up transformer containing 8 turns in the primary coil and 17 turns in the secondary coil. The input voltage across the primary coil is 22 kV. Calculate the output voltage across the secondary coil. output voltage = kV
See it on the paper → - 0973/32 · May/June 2022 · Q9d[1]
Fig. 9.2 shows a copper wire placed between the poles of a magnet. S N Fig. 9.2 When the switch is closed, the wire moves upwards. State how this observation would change if the current is reversed.
See it on the paper → - 0973/42 · May/June 2022 · Q12a(i)[1]
On Fig. 12.1, label the soft‑iron core with an X.
See it on the paper → - 0973/41 · October/November 2019 · Q12c(i)[1]
Name the parts of the generator labelled Z on Fig. 12.3.
See it on the paper → - 0973/41 · October/November 2019 · Q12c(ii)[3]
Explain why a rotating-coil generator produces an alternating current.
See it on the paper → - 0973/41 · May/June 2019 · Q3b(i)[1]
On Fig. 3.2, label the slip rings with the letter R.
See it on the paper → - 0973/41 · May/June 2019 · Q3b(ii)[1]
On Fig. 3.2, label the coil with the letter C.
See it on the paper → - 0973/41 · May/June 2019 · Q3b(iii)[1]
On Fig. 3.2, show the direction of the magnetic field with an arrow ( ).
See it on the paper → - 0973/42 · May/June 2019 · Q12d[3]
Fig. 12.2 shows equipment for measuring wind speed used by Arctic scientists. plastic cups plastic spindle plastic frame coil V iron rod Fig. 12.2 The wind makes the plastic cups move and this causes the spindle and magnet to turn. Suggest why an alternating voltage is measured on the voltmeter.
See it on the paper →
What examiners said
Candidates found this question about explaining why the peak at X was different to the peak at Y very challenging. Few candidates explained that as the magnet is falling it is increasing in speed and that the peaks were caused by the South pole and then the North pole of the magnet passing through the coil of wire.
— Examiner report, October/November 2023, 0973/41 Q9(a)(i) (Cambridge)
Candidates usually ticked that potential difference is equal to work done per unit charge and relates to the energy transferred by a circuit component. Fewer candidates ticked that electromotive force is equal to work done per unit charge and relates to the energy supplied by the source.
— Examiner report, October/November 2023, 0973/41 Q9(b) (Cambridge)
This question proved challenging for some of candidates. Many candidates tried to explain in terms of number of coils or the passage of electrons. The most common omission was to not describe the initial alternating current in the primary coil. There were also some excellent responses that gained full credit.
— Examiner report, May/June 2023, 0973/42 Q6(c)(ii) (Cambridge)
Past papers, syllabus and examiner reports © UCLES (Cambridge University Press & Assessment). Questions are matched to topics from the official syllabus. AssessPro is independent and not endorsed by Cambridge.