O Level Physics 5054, topic 4.5.2
The a.c. generator: past paper questions
7 Cambridge O Level Physics 5054 questions on The a.c. generator (4.5.2) from 7 papers, 2023 to 2025. Mostly multiple choice. Open the paper or try a question free.
Practising builds a set from this topic, free with an account. One question opens straight away, with no account.
- Questions
- 7
- Papers
- 7
- Years
- 2023 to 2025
- Total marks
- 21
- Average per question
- 3 marks
- Largest question
- 9 marks
By type: Multiple choice 5 · Structured 2
How hard the questions are
- Recall0
- Apply0
- Analyse2
- Not banded5
Derived from the command word Cambridge prints in each question, banded by a fixed table beside the syllabus's own definitions. A question printing no command word is unbanded: unknown, not middling.
Command words
- explainAnalyse2 questions
set out purposes or reasons / make the relationships between things clear / say why and/or how and support with relevant evidence
- stateRecall2 questions
express in clear terms
- determineApply1 question
establish an answer using the information available
- drawApply1 question
- writeRecall1 question
Where the questions come from
By year
- 20252
- 20241
- 20234
By session
- May/June4
- Oct/Nov3
By paper
- Paper 15
- Paper 22
Questions on this topic
Showing 7 of 7, spread across the years. Open one to write your answer and have it marked.
- Try this questionQuestion 32May/June 2025, paper 11Multiple choice1 markHas a diagram
An alternating current (a.c.) generator is connected to an oscilloscope. The diagram shows the trace produced on the oscilloscope screen. What are possible angles between the plane of the coil and the magnetic field direction at the times represented by points 1, 2 and 3?
- Try this questionQuestion 34May/June 2024, paper 11Multiple choice1 markHas a diagram
The diagram shows a generator. What are X and Y? | | X | Y | |---|---|---| | A | N pole | split-ring commutator | | B | N pole | slip rings | | C | S pole | split-ring commutator | | D | S pole | slip rings |
- Try this questionQuestion 31Oct/Nov 2023, paper 11Multiple choice1 markHas a diagram
Which graph shows the voltage output against time for a simple a.c. generator?
- Try this questionQuestion 32May/June 2025, paper 12Multiple choice1 markHas a diagram
A square coil is placed in a horizontal uniform magnetic field. The plane of the coil is perpendicular to the magnetic field. The coil is now rotated about an axis through P at a steady rate.
- Try this questionQuestion 35Oct/Nov 2023, paper 12Multiple choice1 markHas a diagram
The output of an a.c. generator is connected to a lamp. The coil of the generator is rotated at a constant rate which makes the lamp flash twice every second.
- Try this questionQuestion 7Oct/Nov 2023, paper 21Structured9 marksHas a diagram
An alternating current (a.c.) generator is used in a remote location to supply electricity. Fig. 7.1 shows the structure of a simple a.c. generator with the coil horizontal.
- Try this questionQuestion 9May/June 2023, paper 21Structured7 marksHas a diagram
Fig. 9.1 shows a simple a.c. generator. Explain why there is a voltage induced in the coil when the coil is turned.