A Level Physics 9702, topic 20.3
Force on a moving charge: past paper questions
10 Cambridge A Level Physics 9702 questions on Force on a moving charge (20.3) from 10 papers, 2023 to 2026. 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
- 10
- Papers
- 10
- Years
- 2023 to 2026
- Total marks
- 113
- Average per question
- 11.3 marks
- Largest question
- 13 marks
By type: Structured 10
What the syllabus asks
- determine the direction of the force on a charge moving in a magnetic field
- recall and use F = BQv sin θ
- understand the origin of the Hall voltage and derive and use the expression VH = BI /(ntq), where t = thickness
- understand the use of a Hall probe to measure magnetic flux density
- describe the motion of a charged particle moving in a uniform magnetic field perpendicular to the direction of motion of the particle
- explain how electric and magnetic fields can be used in velocity selection
How hard the questions are
- Recall0
- Apply3
- Analyse7
- Not banded0
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
- defineRecall8 questions
give precise meaning
- drawApply8 questions
- explainAnalyse7 questions
set out purposes or reasons/make the relationships between things evident/provide why and/or how and support with relevant evidence
- show thatApply5 questions
- stateRecall5 questions
express in clear terms
- useApply4 questions
- deriveAnalyse2 questions
- determineApply2 questions
establish an answer using the information available
- identifyRecall1 question
name/select/recognise
- sketchApply1 question
make a simple freehand drawing showing the key features
Where the questions come from
By year
- 20263
- 20252
- 20242
- 20233
By session
- May/June7
- Oct/Nov3
By paper
- Paper 410
Questions on this topic
Showing 4 of 10, spread across the years. Open one to write your answer and have it marked.
- Try this questionQuestion 6May/June 2026, paper 41Structured12 marksHas a diagram
Define magnetic flux density.
- Try this questionQuestion 5May/June 2024, paper 41Structured13 marksHas a diagram
Define electric field.
- Try this questionQuestion 7May/June 2026, paper 42Structured8 marksHas a diagram
A Hall probe consists of a slice of conducting material, as shown in Figure 7.1. Current enters the slice at face WXYZ and leaves it at face PQRS. The slice is in a uniform magnetic field of flux density .
- Try this questionQuestion 7Oct/Nov 2023, paper 42Structured11 marksHas a diagram
A Hall probe containing a thin slice of semiconducting material is placed in a uniform magnetic field of flux density . The largest faces of the slice are perpendicular to the magnetic field, as shown in Fig. 7.1. The thickness of the slice is .