A-LevelPhysicsD.C. circuits9702/12 · Oct/Nov 2019 · 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?

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

C: the total charge passing through the resistor and the potential difference across the resistor

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Topic: D.C. circuits, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2019 Paper 1 Variant 2, question 33.

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