A-LevelPhysicsD.C. circuits9702/12 · Oct/Nov 2023 · Q341 Mark

Some resistors and a battery of electromotive force (e.m.f.) E and negligible internal resistance are connected in series, as shown. [Figure 34.1] Which statement is correct?

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AThe e.m.f. across each resistor equals the potential difference across the battery.

BThe potential difference across each resistor equals the e.m.f. E of the battery.

CThe sum of the e.m.f.s across the resistors equals the potential difference across the battery.

DThe sum of the potential differences across the resistors equals the e.m.f. E of the battery.

✓ Correct answer

D: The sum of the potential differences across the resistors equals the e.m.f. E of the battery.

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Topic: D.C. circuits, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2023 Paper 1 Variant 2, question 34.

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