A-LevelPhysicsD.C. circuits9702/12 · Feb/Mar 2025 · Q351 Mark

The diagram shows a junction in a circuit where three wires, P, Q and R, meet. The currents in P and Q are 1 A and 3 A respectively, in the directions shown. [Figure 35.1] How much charge passes a given point in wire R in a time of 5 s?

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A0.4 C

B2 C

C10 C

D20 C

✓ Correct answer

C: 10 C

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Topic: D.C. circuits, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Feb/Mar 2025 Paper 1 Variant 2, question 35.

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