A-LevelPhysicsD.C. circuits9702/12 · Feb/Mar 2016 · Q371 Mark

The battery of a car has an internal resistance of 0.10 Ω and an electromotive force of 12 V. When the battery is connected to the starter motor, the potential difference across the battery terminals is 7.0 V. What is the current supplied to the starter motor?

A50 A

B70 A

C120 A

D190 A

✓ Correct answer

A: 50 A

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Topic: D.C. circuits, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Feb/Mar 2016 Paper 1 Variant 2, question 37.

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