A-LevelPhysicsElectric fieldsMay/June 2010Paper 1 Q271 Mark
In the diagram, the shaded area represents a uniform electric field directed away from the observer (at right-angles into the plane of the paper). [Figure 27.1] A horizontal beam of electrons enters the field, travelling from left to right. In which direction is this beam deflected by the field?
Aupwards (in the plane of the paper)
Bdownwards (in the plane of the paper)
Caway from the observer
Dtowards the observer
✓ Correct Answer
The correct answer is D: towards the observer
📋 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.
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