A-LevelPhysicsD.C. circuits9702/12 · May/June 2019 · Q351 Mark

A cell with internal resistance is connected to a variable resistor R as shown. [Figure 35.1] The resistance of R is gradually decreased. How do the current I and the terminal potential difference across the cell change?

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Acurrent I: decreases, terminal potential difference across cell: decreases

Bcurrent I: decreases, terminal potential difference across cell: increases

Ccurrent I: increases, terminal potential difference across cell: decreases

Dcurrent I: increases, terminal potential difference across cell: increases

✓ Correct answer

C: current I: increases, terminal potential difference across cell: decreases

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Topic: D.C. circuits, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2019 Paper 1 Variant 2, question 35.

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