A-LevelPhysicsElectricityMay/June 2011Paper 1 Q321 Mark

What describes the electric potential difference between two points in a wire that carries a current?

Q: What topic does this question test?

This question tests Electricity in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Athe force required to move a unit positive charge between the points

Bthe ratio of the energy dissipated between the points to the current

Cthe ratio of the power dissipated between the points to the current

Dthe ratio of the power dissipated between the points to the charge moved

✓ Correct Answer

The correct answer is C: the ratio of the power dissipated between the points to the current

📋 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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About This A-Level Physics Question

Topic

This multiple-choice question tests Electricity in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics May/June 2011 examination, Paper 1 Variant 2.

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