O-LevelPhysicsMagnetismOct/Nov 2025Paper 1 Q361 Mark
A beta-particle (β-particle) travels to the right at a constant speed. [Figure 36.1] Which field deflects the particle towards the top of the page?
Ahorizontal magnetic field directed out of the page
Bhorizontal magnetic field directed into the page
Chorizontal electric field directed to the left
Dhorizontal electric field directed to the right
✓ Correct Answer
The correct answer is A: horizontal magnetic field directed out of the page
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
🔒
Unlock the Examiner's Analysis
Sign up for free to reveal the full examiner report, trap analysis, and mark scheme breakdown for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep