A-LevelPhysicsD.C. circuitsOct/Nov 2020Paper 1 Q361 Mark
A car battery has an electromotive force (e.m.f.) of 12 V and an internal resistance of 0.05 Ω. The battery is connected to the starter motor of a car. The current in the motor is 160 A. [Figure 36.1] What is the terminal p.d. across the battery?
A0 V
B4 V
C8 V
D12 V
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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...
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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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