O-LevelPhysicsElectricity5054/12 · Oct/Nov 2021 · Q331 Mark

Quantity X and quantity Y have the same unit Z. X is the energy dissipated by a battery in driving unit charge round the complete circuit. Y is the work done in a component in driving unit charge through the component. What are X, Y and Z?

AX: electromotive force, Y: potential difference, Z: coulomb

BX: electromotive force, Y: potential difference, Z: volt

CX: potential difference, Y: electromotive force, Z: coulomb

DX: potential difference, Y: electromotive force, Z: volt

✓ Correct answer

B: X: electromotive force, Y: potential difference, Z: volt

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Topic: Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2021 Paper 1 Variant 2, question 33.

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