A-LevelPhysicsD.C. circuits9702/12 · Oct/Nov 2020 · 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?
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A0 V
B4 V
C8 V
D12 V
✓ Correct answer
B: 4 V
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