A-LevelPhysicsPhysical quantities and units9702/12 · May/June 2010 · Q21 Mark
The SI unit for potential difference (the volt) is given, in base units, by
Akg m A⁻¹ s⁻³.
Bkg m² A⁻¹ s⁻².
Ckg m² s⁻².
Dkg m² A⁻¹ s⁻³.
✓ Correct answer
D: kg m² A⁻¹ s⁻³.
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