A-LevelPhysicsD.C. circuitsOct/Nov 2019Paper 1 Q331 Mark

There is a current in a resistor for an unknown time. Which two quantities can be used to calculate the energy dissipated by the resistor?

Q: What topic does this question test?

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

Athe current in the resistor and the potential difference across the resistor

Bthe resistance of the resistor and the current in the resistor

Cthe total charge passing through the resistor and the potential difference across the resistor

Dthe total charge passing through the resistor and the resistance of the resistor

✓ Correct Answer

The correct answer is C: the total charge passing through the resistor and the potential difference across the resistor

📋 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 D.C. circuits in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics Oct/Nov 2019 examination, Paper 1 Variant 2.

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