A-LevelPhysicsPhysical quantities and unitsMay/June 2013Paper 1 Q21 Mark
The unit of resistivity, expressed in terms of base units, is given by kgx³y-2z-3. Which base units are x, y and z?
Aampere
metre
second
Bmetre
ampere
second
Cmetre
second
ampere
Dsecond
ampere
metre
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of physical quantities and units within the Physicssyllabus. The examiner's mark scheme requires...
📋 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...
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