O-LevelPhysicsElectricityOct/Nov 2023Paper 3 Q210 Marks
In this experiment you will investigate the resistance of a resistance wire. You are provided with: • a power source • a length of resistance wire attached to a metre rule • a resistor of resistance 10Ω • a voltmeter • connecting leads • a switch • a flying lead with a crocodile clip at the free end. The supervisor has assembled the apparatus as shown in Fig. 2.1. [Figure 2.1] The crocodile clip at the end of the flying lead may be connected at different points along the length of the resistance wire.
📋 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...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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