A-LevelPhysicsD.C. circuitsOct/Nov 2012Paper 1 Q361 Mark
A 100 Ω resistor conducts a current with changing direction and magnitude, as shown. [Figure showing current-time graph] What is the mean power dissipated in the resistor?
A100 W
B150 W
C250 W
D400 W
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of d.c. circuits 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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