A-LevelPhysicsD.C. circuitsOct/Nov 2024Paper 1 Q351 Mark
Three resistors are connected to a cell of negligible internal resistance. Which circuit has a combined resistance of 100 Ω?
ACircuit diagram showing two 100 Ω resistors connected in parallel, and this parallel combination connected in series with a 50 Ω resistor.
BCircuit diagram showing a 50 Ω resistor and a 100 Ω resistor connected in parallel, and this parallel combination connected in series with another 100 Ω resistor.
CCircuit diagram showing two 100 Ω resistors connected in series, and this series combination connected in parallel with a 50 Ω resistor.
DCircuit diagram showing three 100 Ω resistors connected in parallel, and this parallel combination connected in series with a 50 Ω resistor.
✓ Correct Answer
The correct answer is B. 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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